how to cite website in presentation

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APA 7th Edition Guide

• Citing Sources in PowerPoint Presentations
• APA Paper Basics
• Preventing Plagiarism
• Academic Integrity Video
• Setting Up Your Paper
• In-Text Citations
• eTextbooks and Course Materials
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Citing Sources in PowerPoint Slides

• PowerPoint - In-text Citations
• PowerPoint - References List

Note:  APA does not have specific rules about the format of PowerPoint slides.  Rasmussen University does have recommended guidelines outlined below and in the attached PPT presentation.

PowerPoint slides  may   need citations, depending on what type of information is included on the slide.

If the text on a slide is a quote (someone else's words, verbatim) or someone else's ideas in the presenter's own words, then a citation is needed.

If the text placed on a slide is simply a word or phrase that represents a topic that the presenter will be discussing in greater detail, then a citation is not needed.

The table below includes two PowerPoint slides (left side). The column on the right tells whether or not the information would need to be cited and why.

Speaker Notes:  Some assignments require text in the Speaker Notes area of the PowerPoint slide. If information from a source is quoted, summarized, or paraphrased in that area, an in-text citation and reference will likely be required. Ask your instructor for clarification.

• Presentations & APA Citation Style at Rasmussen University Great resource to share with students if they are having struggles with APA in PPTs.

PowerPoint Slides - References

There are two ways to include the Reference list in your presentation:

• Coordinating reference lists are typically handed out during or after the presentation either in print if presenting in person, or electronically if presenting online. This is the preferred method of including a Reference list of the sources cited in your slide deck.
• Include a Reference list in the last slide of the presentation. This is an acceptable method if there are not many resources to include. Avoid adding so many resources to the list that the type is not legible to those attending the presentation

Creating the Reference List Slide

• If you use outside sources in your presentation (noted in your in-text citations), you must cite those sources on a References page/slide.
• Your Reference page can be created in NoodleTools, exported to Microsoft Word, and distributed or submitted with your slides to those who attend your presentation. Ask your instructor if they would like a Reference slide as the last slide of your presentation. Note that you may need more than one slide depending on how many references are needed.

See the slide deck below for more information.

• << Previous: Missing Reference Information
• Next: Annotated Bibliographies >>
• Last Updated: Feb 27, 2024 2:56 PM
• URL: https://guides.rasmussen.edu/apa

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How to Cite a Website, Book, YouTube Video, etc. in PowerPoint

• PowerPoint Tutorials
• Miscellaneous
• Presentation Design
• August 16, 2019

Citing a source in a report or paper is pretty easy – you just give the source details according to a particular style of citation.

But, when it comes to presentations and speeches, do you know how to correctly cite your sources?

It seems like quite a basic question at first, but when it comes to the practicalities and technicalities, the answers aren’t so easy to come by.

Sure, quotes may be simple enough to introduce, but what about all the other information, data, facts, figures, and images you use? Do you know how to present that information and give proper legal credit without disrupting the flow of your presentation?

No? Then read on!

Important Legal Note:  This is not legal advice. For full details on copyright laws and Fair Use licenses, please check the  US Copyright Office .

Table of Contents

Why citing your sources is important.

Your audience needs to know where the information, visuals, or any other materials you use in your presentation come from.

Very often our presentations and speeches are informed by or based on the work of others and this needs to be acknowledged. Likewise, audio, visual, or video is copyright protected.

Citing sources and creative owners can also help keep you on the right side of copyright law and fair use licenses….more on this below.

Make your work more credible

Citing gives your audience a good impression by proving how well you know your stuff. By attributing work to the rightful owners, you also show integrity.

A well-cited presentation appears well-researched and properly developed; and hence, it’s often better delivered, and better received.

Give the audience access to information

The whole point of a presentation or speech is to share knowledge. By citing your sources, you give your audience the opportunity to learn more about your subject and do their own research if they so wish.

Citations and Copyright

If you use someone else’s copyrighted material in your presentation without citing the creator – or if you cite them incorrectly – you may likely be guilty of copyright infringement.

Copyright infringement is only 100% avoided by getting the copyright owner’s explicit permission.

You can, however, use copyrighted material without permission if you can show that it doesn’t infringe on Fair Use.

To learn more about Fair Use, see this article  here  on the U.S. Copyright Office website.

This can be a rather gray area, as what is considered to be ‘fair use’ can be open to interpretation. Generally speaking, Fair Use takes into consideration the following:

• the purpose and character of the use
• the profit or nonprofit cause
• the nature of the protected work
• how much of the work is used
• how the use affects the value or future demand of the work

For example, if you use a copyrighted photograph just because it looks cool, use it as your background image on a PowerPoint slide, or repeatedly use it so that it becomes associated with your brand, then this is not Fair Use.

If you use the photograph to make a point, illustrate an idea, or for educational purposes, and also give proper accreditation to the copyright owner even if you don’t have permission, then that might be considered Fair Use and would probably be fine.

How to do in-text citations in PowerPoint

In-text citations are citations you see on the screen, and are often in the same format you’d see in a written report.

If your slide refers to a study, for example, you will need to add the copyright details. To do that, simply add the name of the author, the work and the publication in parentheses after the reference.

For example, in parenthesis: (Author, Date).

This is particularly useful when presenting quotes or insightful facts and figures that support your message.

Note: This type of citation sometimes doesn’t leave enough room for all the information you need to provide. In this case, you can add a Sources slide at the very end of your presentation

Adding footnote citations

You can also use footnotes on your PowerPoint slides to give citations.

Next to the text you would like to reference, add the number ‘ 1 ’ for your first citation. Highlight it, and then from the ‘Home’ option, open the Font box and select ‘ Subscript ’ and click on ‘ OK ’.

Then, click on ‘ Insert ,’ select a text box and then draw it onto your slide. Enter the same number as you used in the text, and type your source details. You will likely want to reduce the size of the text.

Note: When I talk about footnotes here, I don’t mean the Header & Footer feature in PowerPoint. You can write your citations inside the Footer placeholder, but keep in mind that the text you type in here will display on every slide that has the Footer enabled.

Verbal citation during a presentation

For some material, you may choose not to give an in-text citation, but rather give credit verbally. Be sure to introduce the source before you present the information and keep it brief so that it doesn’t slow down the flow of your presentation.

Here are some example phrases:

• According to Dr. Richards, professor of Such and Such at This University,…
• John Dean, author of the 2015 study, A Study of Something, argues that…
• Jane Gordons, a journalist writing for the New York Times, offers this example….

Use speaker notes to help you cite verbally

It is a good idea to add the full citation details in the speaker notes so that you make sure you relay the correct details.

Also it ensures that the full citations will be seen should you share your slides with audience or team members after the presentation, or print them.

How to cite a website

If you are wondering how to cite websites, that’s probably because not all websites provide the authors name for you to cite (making it a bit more difficult).

If you can’t find the website authors name you can instead cite the website’s address. And you don’t have to copy and paste the whole URL when citing websites either.

When citing a website, you just need to give enough information so that your audience knows where the information came from and how to get more details if they want to check it out.

Here are the common elements you’ll need to properly cite a website in your presentation:

• Website or author name
• Page name or article title
• Exact URL of website
• Page date of publication

See the cited website example in the picture below.

How to cite a picture or image

There are countless places for pictures that are available for free and public use according to Creative Commons licensing. You can search  Flickr  and  Google Advanced Image Search  by filtering the results by ‘Creative Commons’.

There are also sites providing stock images which are royalty free and can be used without attribution, such as  Pixabay  or  Pexels .

Always check the licensing agreements, as some images may have ‘some rights reserved’ or specific requirements for citations.

The common elements you’ll need when citing a picture are:

• Creator’s name
• Title of the picture
• Date and location of publication
• Publisher or website
• Picture URL

To create the citation in PowerPoint, you can insert a small text box and add the details in a readable way, as you can see in the example below.

To learn how to crop a picture in PowerPoint into different shapes as pictured above,  read our guide here .

How to cite a YouTube video

While YouTube is a free online streaming service, you shouldn’t assume that you can use anyone’s video without properly citing it.

Here are the common elements you’ll need to create a YouTube video citation:

• Creator’s name or screen name
• Video title
• Website name
• Publication date

Whichever citation method you use, should at a minimum credit the creator of the video (real name if possible, but their username will suffice), and the year the video was posted. For example: (Nuts & Bolts Speed Training, 2014).

In the notes for full referencing, you’ll need more details:

Author/Username. (month, day, year). Title of video (Video file). Retrieved from  http://URL.com .

Nuts & Bolts Speed Training. (June 25, 2014). 4 PowerPoint Tricks You Don’t Know (Video File). Retrieved from  https://www.youtube.com/watch?v=05OW0Ce8rT8 .

How to cite a book

Books are another common reference material you’ll want to properly cite in your presentations.

Here are the common elements you’ll need when citing a book (same-same for a magazine):

• Author name
• Publication date and location
• Publisher name

If you are paraphrasing from a book, include an in-text citation of the author and the year (Brown, 2005) or the author, year and the page number (Brown, 2005, p.13), immediately following the text.

Another option for your citation, is to include them in Speaker Notes so that if you print your notes as handouts, the speaker notes will appear there.

NOTE: For help printing your speaker notes, see our guide on Printing PowerPoint with speaker notes .

How to cite a lecture (talk or speech)

Like for books and quotes, the in-text citation will need the author’s last name and the year the speech or talk was presented, written in parenthesis: (Gordon, 2017).

In your PowerPoint notes, it should be fully cited with the name, year, title of the talk and the format, and where it took place. For example:

Gordon, B. (2017). The Theory Behind Big Business. Presentation, Atlanta.

How to cite a song

When it comes to using a song in your presentation, there are a many variables as to whether it’s an infringement of copyright laws. Unauthorized use of a song can be allowed under the concept of ‘fair use’ as detailed above.

If you are in any doubt, obtain the license or get permission. The process is relatively straightforward and doesn’t always mean a hefty fee. Sometimes, it’s as simple as asking and getting permission or making sure you acknowledge the copyright owner.

You can give acknowledgment on the PowerPoint Slide with in-text citation on the appropriate slide or as a ‘sources slide’ at the end of your presentation:

To get permission, here are three main licensing companies that you can contact for further info: 

• ASCAP ( American Society of Composers, Authors and Publishers )
• BMI ( Broadcast Music Incorporated )
• SOCAN ( Society of Composers, Authors and Music Publishers of Canada )

How to cite a presentation

If you want to include a slide or information gained from another PowerPoint presentation that has been published, you can use an in-text citation just as if you were citing a book.

To cite a presentation, simply cite the author’s name and the year the presentation was produced, (Dean, 2007).

In the notes you’ll add the details of “PowerPoint slides”, when it was “Retrieved from” and the URL. It should look something like this:

How to cite a quote

In the same way as you would quote from a book, an in-text citation with the author of the quote is fine.

Some quotes from historical source won’t have a book, page number or publisher to cite. In these cases, the author name (and year if possible) is sufficient.

Note:  Make sure that you thoroughly check the quote’s source if you find the quote online.

There are far too many misquoted and misattributed sayings out there and there’s nothing more embarrassing than citing the wrong person in your presentation.

So that’s how to cite a variety of different sources in your PowerPoint presentations including:

• How to cite books
• How to cite websites
• How to cite YouTube videos
• And a bunch of other sources

While in-text citation may take a little more work, it is better than keeping all of your sources in the conclusion. That’s because the end of your presentation should be punchy, memorable, and leave your audience with a good impression (see our tips for how to end a presentation  here ).

This is particularly true as, your audience isn’t able to flip back to see which citation goes with which image, quote, video, website, etc. Giving them the details at the same time as the material allows them to take note of it there and then.

It’s a small detail but makes a huge difference when it comes to delivering a seamless and informative presentation.

If you enjoyed this ultimate guide to citing sources in PowerPoint, you’ll love our other PowerPoint training course and resources that you can  check out here .

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Citing Business Sources in APA Style

7. citing sources in presentations.

• 1. About this guide
• 2. Citing references in-text
• 3. Citing sources in your reference list
• 4. Reference List Examples: Brock Library Business Databases
• 5. Reference List Examples: Statistical Sources
• 6. Reference List Examples: Audiovisual Sources

7.3: Using Reference Lists in Presentations

7.4: apa style powerpoint help.

• The Publication Manual of the American Psychological Association (APA Style) was designed to assist writers in preparing research papers (such as journal articles) and therefore does not actually contain any guidelines on preparing powerpoint presentations according to APA Style.
• Typically, if you are required to create a presentation according to APA Style, you should clarify with your professor if he/she actually just expects you to put your in-text citations and references in APA Style.

7.1: In-text citations in Presentations

• You can cite references within the text of your presentation slide using the same APA format for in-text citations (Author, Date) as in a written essay.
• Remember to cite sources for direct quotations, paraphrased materials, and sources of facts (such as market share data in the example slide).
• Your Reference List must include the sources cited on your presentation slides.

7.2: Using Images on Slides

If you use images, such as photographs or clipart, on your slides, you should also credit the source of the image. Do not reproduce images without permission. There are sources for clipart and images that are "public use" according to Creative Commons licensing such as:

• Flickr: https://www.flickr.com/creativecommons/
• Google Advanced Image Search allows you so filter results by usage rights (e.g., free to use or share):  https://www.google.com/advanced_image_search
• ClipSafari:  https://www.clipsafari.com
• Openclipart.org:  https://openclipart.org/
• Noun Project:  https://thenounproject.com   (free membership, must give credit to creator of icon following a specific format)

Photographs are treated as figures in APA Style. Therefore, the citation for the source of the image is included as a footnote in the figure caption underneath the photograph which includes the figure number and a description. The source of the image obtained is attributed using the following model:

Figure 1. Blah blah blah. From Title of Image , by Author, Year. Retrieved from URL.

Figure 1. Photograph of a sculpture in Cupertino, California. From Infinite Loop II by Kurafire (2007, January 3).  Retrieved from https://www.flickr.com/photos/kurafire/343629962/.

Another option for citing image sources is to create a separate slide titled "Photo credits" or "Image Sources". For more assistance on the various ways to cite images in presentations (but not necessarily in APA format), see:

• Image Citation Guide (UBC Copyright Office)
• How to credit photos (Photoshare.org). Provides examples of various ways to credit image sources in Powerpoint, on webpages, and in print materials.
• How to cite clip art or stock image references (APA Style website) Consult the APA Style site for the latest guidance on how to cite images according to the 7th edition.

Option 1: Create a References handout (recommended)

Option 2: Create a References slide (if you only have a few items in your list)

• use a large enough font (e.g., 24 points)
• limit to 12 lines of text on each slide

• Power up your PowerPoint (gradPSYCH at APA.org) Seven research-backed tips for effective presentations. Includes links to digital extras: "the worst PowerPoint presentation ever made" and "Comedian Don McMillan's PowerPoint pet peeves".
• << Previous: 6. Reference List Examples: Audiovisual Sources
• Last Updated: Apr 21, 2023 9:32 AM
• URL: https://researchguides.library.brocku.ca/APABusiness

Home / Guides / Citation Guides / How to Cite Sources / How to Cite a PowerPoint Presentation in APA, MLA or Chicago

How to Cite a PowerPoint Presentation in APA, MLA or Chicago

Let’s be honest: Sometimes the best information for a paper comes straight from a professor’s PowerPoint presentation. But did you know that source needs to be cited?

Whether you’re making use of your instructor’s lecture materials or pulling information from a Powerpoint found online, you need to make sure to cite your sources if you use information from it in a project or paper.

Here’s a run -t hrough of everything this page includes:  

• Cite a PowerPoint Presentation in MLA format
• Cite a PowerPoint Presentation in APA format
• Cite a PowerPoint Presentation in Chicago Style

By now, you’re probably familiar with how to cite websites, books or journal articles, but not as knowledgeable about how to cite a Powerpoint presentation. In actuality, citing PowerPoint presentations aren’t all that different from citing written materials, so don’t let yourself be phased! It’s not too hard and compiling an MLA works cited or APA reference page doesn’t take too long—each one should take just a few minutes to create.

To help you with the process, we’ve put together a handy guide demonstrating how to cite a PowerPoint presentation in three commonly used citation styles: MLA, APA and Chicago.

Let’s start by looking for basic information you’ll need for the citation.

Information you may need to cite a PowerPoint Presentation:

• Author or authors of the presentation
• Presentation title
• Date of publication/presentation
• Place of publication/where the presentation was given
• URL (if used to locate the presentation)

Cite a PowerPoint Presentation in MLA format:

MLA format citation structure:

Author Last Name, First Name. Presentation Title. Month Year, URL. PowerPoint Presentation.

Example citation :

Park, Lisa. Effective Working Teams . Jan. 2011, https://www.company.meetings/teams. PowerPoint Presentation.

In-text citation structure:

(Last Name)

Example in-text citation:

Cite a PowerPoint Presentation in APA format:  

APA reference structure:

Author or Presenter Last Name, Middle Initial. First Initial. (Date of publication). Title of presentation [PowerPoint presentation]. Conference Name, Location. URL

Example reference:

Park, L. (2011, March 24-28). Effective working teams [PowerPoint presentation]. Regional Dairy Workers National Conference, New York, NY, United States. https://www.company.meetings/teams

Cite a PowerPoint Presentation in Chicago Style:

Chicago citation structure:

Author Last Name, First Name. “Presentation Title.” Lecture, Location of Lecture, Month Day, Year.

Example citation:

Park, Lisa. “Effective Working Teams.” Lecture, The Plaza Hotel, New York, NY, January 11, 2011.

Troubleshooting

Solution #1: how to cite a powerpoint that has multiple authors..

For a presentation with multiple authors, list the authors alphabetically by last name for the full reference citation. The citation will list each author by Last Name, First Initial.

If the PowerPoint has just two authors, separate them with a comma and an ampersand (&). If the PowerPoint has more than two authors, list the authors separated by commas.

Reference examples:

Felner, D., & Nguy, A. (2021 April 10-12). The history of Claymation [Slideshow]. Animation Now, Los Angeles, CA, United States.

Felner, D., Nguy, A., Becham, G. (2021 April 10-12). The history of Claymation [Slideshow]. Animation Now, Los Angeles, CA, United States.

For an in-text citation for two authors, give both surnames separated by an ampersand (&) followed by a comma and the year of publication or presentation.

For an in-text citation for three or more authors, list the first author’s surname followed by “et al.” followed by a comma and the year of publication or presentation.

In-text citation examples:

(Felner & Nguy, 2021)

(Felner et al., 2021)

For a PowerPoint with two presenters or authors, include both names in the full works-cited citation. The names need to be written as follows: First presenter’s Last Name, First Name, and then the second presenter’s First Name and Last Name.

For an in-text citation, simply list the surnames of both presenters.

In-text citation example:

(Nguy and Felner)

Work-cited entry example:

Nguy, Anna and Dominic Felner. The History of Claymation. Apr. 2021. PowerPoint Presentation.

For a PowerPoint with three or more presenters, only list one presenter’s name followed by a comma and “et al.”

For an in-text citation for three or more authors or presenters , list the surname given in the full works-cited citation followed by “et al.”

(Nguy et al.)

Nguy, Anna et al. The History of Claymation. Apr. 2021. PowerPoint Presentation.

Solution #2 How to cite a slideshow that wasn’t made with PowerPoint

If making a full works-cited citation for a slideshow that was made with another program other than PowerPoint, include the medium in brackets instead of PowerPoint.

If the presentation is not in PowerPoint, and you can’t determine what software was used, include the word “slideshow” in brackets in place of PowerPoint.

Nguy, A. (2021 April 10-12). The history of Claymation [Prezi presentation]. Animation Now, Los Angeles, CA, United States.

Nguy, A. (2021 April 10-12). The history of Claymation [Slideshow]. Animation Now, Los Angeles, CA, United States.

The in-text citation will be formatted like any other APA in-text citation (author last name, year).

(Nguy, 2021)

At the end of your full works-cited citation, include the program the slideshow was made with, formatted as:  ______ Presentation.

If you are uncertain of the program used, end your citation with “slideshow” followed by a period. Nguy, Anna. The history of Claymation. Apr. 2021. Prezi Presentation. Nguy, Anna. The history of Claymation . Apr. 2021. Slideshow.

The in-text citation will be formatted like any other MLA in-text citation (author last name).

Hello all paper writers! Take a moment to try our spell checker , or refresh your knowledge on English basics with our EasyBib grammar guides ! Discover a determiner definition , learn what is an adverb , review an interjection list , and more.   

Updated April 26, 2021.

Citation Guides

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• In-text Citations
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To cite PowerPoint presentation slides, include the author name, year/date of presentation, the title, the source description, the website and/or university name, and the URL where the source can be found.

If the PowerPoint presentation is not accessible to the reader, cite the slides as personal communication.

If you want to cite a PowerPoint in MLA or APA style, you need to have basic information including the name of the author(s), title of the presentation, date and place of publication, and URL. For in-text citations, you need to include only the author name(s) in MLA style and author name(s) and year in APA style.  

APA in-text citations

(Author Surname, publication year)

(Dhanalakshmi, 2004)

MLA in-text citations

(Author Surname)

(Dhanalakshmi)

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• SCC Research Guides

Presentations, Speeches, and Projects

• Citing Your Sources in a Presentation

• Citing Sources in a PowerPoint Presentation

There are several ways to cite sources in a project depending on the source and your instructor's requirements.

Most instructors want you to cite your sources the same as you would if you were writing a paper for your in-text citations.

Some instructors instead have you number your sources on your Works Cited or References page and then use the number as the in-text citation. You would follow your instructors requirements.

For images, see Finding and Citing Images in a Project .

Citing Sources in a Presentation

• Intro to Verbal Citations
• Additional Verbal Citation Resources

When preparing your presentation, remember that all sources used must be cited in both the Works Cited page and in-text.  For a speech you will need to verbally give credit to your sources. Verbally citing a source can be as simple as stating, "Dr. Bob, a Professor at Clemson University, stated in a 2019 Forbes article, ..."   Other examples could be, "The World Health Organization published the following Zika virus statistics on April 12, 2016...," or "According to Neal's book we learned..."

By verbally citing your sources you are lending credibility to your topic and making  your position stronger. Be sure to vary the language in which you verbally cite sources to keep your presentation more interesting (don't say "According to..." every time). 

• Oral Citations Video (Video) A brief tutorial on creating and delivering oral citations in public speaking. Topics include the importance of oral citations, when oral citations are necessary, and how to create and deliver oral citations in a speech. (5 mins.)
• Orally Citing a Source in a Speech (Video) by Janene Davison This is a basic primer on how to incorporate indirect and direct quotes into your presentation. (4 mins.)
• Tips on citing sources when speaking publicly by Sarah Stone Watt Gives example of written sources versus orally attributions.

Most instructors want you to cite your sources the same you would if you were writing a paper for your in-text citations where you include an in-text on the slide where you used the information, and a Works Cited or References list of all your sources on a slide at the end of your presentation.

Some instructors instead have you number your sources on your Works Cited or References slide and then use the number as the in-text citation. Follow your instructor's requirements.

For images, see   Finding and Citing Images in a Project .

• << Previous: Creating Your PowerPoint
• Next: Resources for Presenting >>
• Assignment Requirements
• Finding and Using Statistics
• Finding and Citing Images
• Creating Your PowerPoint
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Harvard Referencing Guide: PowerPoint Presentations

• Introduction to the Guide
• The Harvard Referencing Method
• Cite Them Right Style
• Referencing Example
• Cite-Them-Right Text Book
• Online Tutorials
• Reference List / Bibliography
• Introduction
• Short Quotations
• Long Quotations
• Single Author
• Two Authors
• Three Authors
• Four or More Authors
• 2nd Edition
• Chapter in an Edited Book
• Journal Article - Online
• Journal Article - Printed
• Newspaper Article - Online
• Newspaper Article - Printed
• Webpage - Introduction
• Webpage - Individual Authors
• Webpage - Corporate Authors
• Webpage - No Author - No Date
• Film / Movie
• TV Programme
• PowerPoint Presentations
• YouTube Video
• Images - Introduction
• Images - Figure from a book
• Images - Online Figure
• Images - Online Table
• Twitter Tweet
• Personal Communication
• Email message in a Public Domain
• Course notes on the VLE
• Computer Games
• Computer Program
• General Referencing Guide >>>
• APA Referencing Guide >>>
• IEEE Referencing Guide >>>
• Research Guide >>>
• PowerPoint Presentation

Audiovisual Media - Powerpoint Presentation

PowerPoint Pr esentation

E xample -  Presentation available online and accessible by anyone

The full reference should generally include

• Year (in round brackets)
• Title of the presentation (in italics)
• [PowerPoint presentation] in square brackets
• Available at: URL
• (Accessed: date)

In-text citation

Full reference for the Reference List

Example: PowerPoint presentation from a learning management system such as the VLE

• Author or tutor
• Year of publication (in round brackets)
• Title of the presentation (in single quotation marks)
• Module code: module title (in italics)
• Available at: URL of the VLE

Example : Full reference for the Reference List

Audiovisual Material

Film / movie

TV programme

PowerPoint presentation

YouTube video

Harvard Referencing Guide: A - Z

• APA Referencing Guide >>>
• Bibliography
• Books / eBooks - 2 Authors
• Books / eBooks - 2nd Edition
• Books / eBooks - 3 Authors
• Books / eBooks - Individual Chapter
• Books / eBooks - Introduction
• Books / eBooks - More than 3 Authors
• Books / eBooks - Single Author
• Chapter in an edited book
• Cite Them Right - Style
• Cite Them Right - Text book
• Conversation - Personal
• Direct Quotations - Introduction
• Direct Quotations - Long
• Direct Quotations - Short
• Emails - In a Public Domain
• Emails - Personal
• Fax message
• General Referencing Guide >>>
• Harvard Referencing Method
• Reference List
• Skype Conversation - Personal
• Support - 'Cite Them Right' textbook
• Support - Online tutorials
• Text Message
• Webpage - Corporate Author
• Webpage - Individual Author
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• Last Updated: Mar 13, 2024 11:31 AM
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Citing Sources: Citing Orally in Speeches

• Citing Sources Overview
• Citing in the Sciences & Engineering
• APA Citation Examples
• Chicago Citation Examples
• Biologists: Council of Science Editors (CSE) Examples
• MLA Citation Examples
• Bluebook - Legal Citation

Citing Orally in Speeches

• Citation Managers
• Oral Source Citations - James Madison University Communication Center
• Using Citations and Avoiding Plagiarism in Oral Presentations - Hamilton College, Dept. of Rhetoric and Communication
• Referencing: Citing in Orals - James Cook University

General Tips:

Tell the audience your source before you use the information (the opposite of in-text citations).

Do not say, “quote, unquote” when you offer a direct quotation. Use brief pauses instead.

Provide enough information about each source so that your audience could, with a little effort, find them. This should include the author(s) name, a brief explanation of their credentials, the title of the work, and publication date.

 “In the 1979 edition of The Elements of Style, renowned grammarians and composition stylists Strunk and White encourage writers to ‘make every word tell.’”

If your source is unknown to your audience, provide enough information about your source for the audience to perceive them as credible. Typically we provide this credentialing of the source by stating the source’s qualifications to discuss the topic.

“Dr. Derek Bok, the President Emeritus of Harvard University and the author of The Politics of Happiness argues that the American government should design policies to enhance the happiness of its citizens.”

Provide a caption citation for all direct quotations and /or relevant images on your PowerPoint slides.

Direct Quotations:

These should be acknowledged in your speech or presentation either as “And I quote…” or “As [the source] put it…”

Include title and author: “According to April Jones, author of Readings on Gender…”

Periodical/Magazine:

Include title and date: “Time, March 28, 2005, explains…” or “The New York Times, June 5, 2006, explained it this way…”

Include journal title, date, and author: “Morgan Smith writes in the Fall 2005 issue of Science…”

For organizational or long-standing website, include title: “The center for Disease Control web site includes information…” For news or magazine websites, include title and date: “CNN.com, on March 28, 2005, states…” (Note: CNN is an exception to the “don’t use the address” rule because the site is known by that name.)

Interviews, lecture notes, or personal communication:

Include name and credentials of source: “Alice Smith, professor of Economics at USM, had this to say about the growth plan…” or “According to junior Speech Communication major, Susan Wallace…”

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• How to cite a website in APA Style

How to Cite a Website in APA Style | Format & Examples

Published on November 5, 2020 by Jack Caulfield . Revised on January 17, 2024.

APA website citations usually include the author, the publication date, the title of the page or article, the website name, and the URL. If there is no author, start the citation with the title of the article. If the page is likely to change over time, add a retrieval date.

If you are citing an online version of a print publication (e.g. a newspaper , magazine , or dictionary ), use the same format as you would for print, with a URL added at the end. Formats differ for online videos (e.g. TED Talks ), images , and dissertations .

Use the buttons below to explore the format, or use our free APA Citation Generator to automatically create citations.

Cite a website in APA Style now:

Table of contents, citing an entire website, how to cite online articles, websites with no author, websites with no date, how to cite from social media, frequently asked questions about apa style citations.

When you refer to a website in your text without quoting or paraphrasing from a specific part of it, you don’t need a formal citation. Instead, you can just include the URL in parentheses after the name of the site:

One of the most popular social media sites, Instagram (http://instagram.com), allows users to share images and videos.

For this kind of citation, you don’t need to include the website on the reference page . However, if you’re citing a specific page or article from a website, you will need a formal in-text citation and reference list entry.

Prevent plagiarism. Run a free check.

Various kinds of articles appear online, and how you cite them depends on where the article appears.

Online articles from newspapers, magazines, and blogs

Articles appearing in online versions of print publications (e.g. newspapers and magazines) are cited like their print versions, but with an added URL.

The same format is used for blog posts. Just include the blog name where you would usually put the name of the magazine or newspaper.

Articles from online-only news sites

For articles from news sites without print equivalents (e.g. BBC News, Reuters), italicize the name of the article and  not  the name of the site.

When a web page does not list an individual author, it can usually be attributed to an organization or government . If this results in the author name being identical to the site name, omit the site name, as in the example below.

If you can’t identify any author at all, replace the author name with the title of the page or article.

In the in-text citation , put the title in quotation marks if it is in plain text in the reference list, or in italics if it is in italics in the reference list. Note that title case is used for the title here, unlike in the reference list. Shorten the title to the first few words if necessary.

When a web page or article does not list a publication or revision date, replace the date with “n.d.” (“no date”) in all citations.

If an online source is likely to change over time, it is recommended to include the date on which you accessed it.

Scribbr Citation Checker New

The AI-powered Citation Checker helps you avoid common mistakes such as:

• Missing commas and periods
• Incorrect usage of “et al.”
• Ampersands (&) in narrative citations
• Missing reference entries

As social media posts are usually untitled, use the first 20 words of the post, in italics, as a title. Also include any relevant information about the type of post and any multimedia aspects (e.g. videos, images, sound, links) in square brackets.

On some social media sites (such as Twitter ), users go by usernames instead of or in addition to their real names. Where the author’s real name is known, include it, along with their username in square brackets:

In some cases, you’ll want to cite a whole social media profile instead of a specific post. In these cases, include an access date, because a profile will obviously change over time:

When citing a webpage or online article , the APA in-text citation consists of the author’s last name and year of publication. For example: (Worland & Williams, 2015). Note that the author can also be an organization. For example: (American Psychological Association, 2019).

If you’re quoting you should also include a locator. Since web pages don’t have page numbers, you can use one of the following options:

• Paragraph number: (Smith, 2018, para. 15).
• Heading or section name: ( CDC, 2020, Flu Season section)
• Abbreviated heading:  ( CDC, 2020, “Key Facts” section)

When you quote or paraphrase a specific passage from a source, you need to indicate the location of the passage in your APA in-text citation . If there are no page numbers (e.g. when citing a website ) but the text is long, you can instead use section headings, paragraph numbers, or a combination of the two:

(Caulfield, 2019, Linking section, para. 1).

Section headings can be shortened if necessary. Kindle location numbers should not be used in ebook citations , as they are unreliable.

If you are referring to the source as a whole, it’s not necessary to include a page number or other marker.

When no individual author name is listed, but the source can clearly be attributed to a specific organization—e.g., a press release by a charity, a report by an agency, or a page from a company’s website—use the organization’s name as the author in the reference entry and APA in-text citations .

When no author at all can be determined—e.g. a collaboratively edited wiki or an online article published anonymously—use the title in place of the author. In the in-text citation, put the title in quotation marks if it appears in plain text in the reference list, and in italics if it appears in italics in the reference list. Shorten it if necessary.

APA Style usually does not require an access date. You never need to include one when citing journal articles , e-books , or other stable online sources.

However, if you are citing a website or online article that’s designed to change over time, it’s a good idea to include an access date. In this case, write it in the following format at the end of the reference: Retrieved October 19, 2020, from https://www.uva.nl/en/about-the-uva/about-the-university/about-the-university.html

Instead of the author’s name, include the first few words of the work’s title in the in-text citation. Enclose the title in double quotation marks when citing an article, web page or book chapter. Italicize the title of periodicals, books, and reports.

No publication date

If the publication date is unknown , use “n.d.” (no date) instead. For example: (Johnson, n.d.).

Cite this Scribbr article

If you want to cite this source, you can copy and paste the citation or click the “Cite this Scribbr article” button to automatically add the citation to our free Citation Generator.

Caulfield, J. (2024, January 17). How to Cite a Website in APA Style | Format & Examples. Scribbr. Retrieved March 20, 2024, from https://www.scribbr.com/apa-examples/website/

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How to Cite Sources in a PowerPoint: A Comprehensive Guide

For students, researchers, professionals and all the users, citing PowerPoint presentations is critical. It exhibits and shows academic honesty and acknowledges the original sources of the information you use. This article includes simple guidelines for appropriately citing PowerPoint presentations in different styles such as APA, MLA, and Chicago. It also offers a hint on how to modify and update presentation citations.

Part 1: What Is In-Text Citation? (APA, MLA, Chicago Style)

Before going into how to cite sources in powerpoint, first we should know what it is citing all about.

Basics of In-Text Citation

Nowadays, people can now obtain information and data they need from a variety of sources. In-text citations are references to sources within the body of a document that are often used in academic or scholarly writing.

The three major and most used citation styles are APA (American Psychological Association), MLA (Modern Language Association), and Chicago. Each style has its own framework for citing sources. So it is critical to be familiar with the style that is required for your specific assignment or publication.

Here are some examples of in-text citations in each of the three major citation styles:

APA Style: APA style is the most commonly used citation style in the social sciences

MLA style is the most commonly used citation style in the humanities.

Chicago style:

Chicago style is the most commonly used citation style in history, literature, and the fine arts.

Importance of In-Text Citation

What are the benefits of citing and why is in-text citation important? In-text citation is important for several reasons:

Academic Integrity

Citation showing the principles of academic honesty and intellectual integrity by giving credit to the original authors or creators.

Credibility

It shows that your own work is credible by proving that it has been thoroughly researched and is supported by credible sources. They demonstrate how well-researched sources back up your claims and arguments.

Avoiding Plagiarism

In-text citations help in avoiding plagiarism, which is the unethical act of using someone else's work without acknowledgment.

Verifiability

In-text citations enable readers to trace back to the original sources, making it easier for them to verify the information you've presented. This will also increase the credibility of your work.

Part 2: How to Cite a PowerPoint Presentation in APA, MLA, or Chicago

Citing a PowerPoint presentation in academic or professional work is crucial to acknowledge the source of information. Follow these steps to ensure you do it correctly, and consider using reference management tools like EasyBib for assistance.

Step 1: Determine the Citation Style

Identify the citation style you need to use, whether it's APA, MLA, or Chicago. This choice will dictate how you format your citations.

Step 2: Gather general Presentation or sources information

Collect all the essential information about the PowerPoint presentation. The author's name, title of the presentation, date it was created, and the URL (if applicable).

Step 3: Cite in APA Style

For APA style, format your citation like this:

Author's Last Name, First Initial. (Year, Month Day). Title of Presentation [PowerPoint slides]. Name of Website. URL

Step 4: Cite in MLA Style

For MLA style, format your citation like this:

Author last name, first name. "Title of Presentation." Department Name, University Name, Location, Month Day, Year. Web.

Step 5: Cite in Chicago Style

For Chicago style, format your citation like this:

Author last name, first name. "Title of Presentation." Lecture, Department Name, University Name, Location, Month Day, Year.

How to Edit and Update Citations

Always remember to keep track of any changes to your sources so that you can update or edit the citations in your presentation. Make sure you update the citations in line with any changes you make to the content. With just a few clicks, reference management tools enable you to update your citations, which can help automate this process.

Why Choose WPS Office

WPS Office is an essential software tool for creating and checking PowerPoint presentations. WPS supports opening PowerPoint documents and offers a range of features and benefits for creating and editing presentations. Here are some of the features and benefits of using WPS Office Presentation:

Free download and free to use Word, Excel, and PPT: WPS Office is completely free to use, with no hidden fees or subscriptions.

● Powerful PDF toolkit: WPS Office includes a powerful PDF toolkit that allows users to create, edit, and convert PDF files.

● Rich template store: WPS Office has a rich template store with over 10,000 templates to choose from, including a variety of scheduling templates.

● Rich functions : WPS Office offers a wide range of features and functions, including the ability to collaborate with others online and to create and edit documents on the go.

● Light weight: WPS Office is a lightweight application that takes up very little space on your computer.

● Support online documents : WPS Office allows users to save and access documents online, making it easy to collaborate with others and to access your files from anywhere.

● Safe and stable: WPS Office is a safe and stable application that has been used by millions of people around the world.

Steps to edit Powerpoint in WPS:

Step 1: Download and install WPS Office

Step 2: Open WPS Presentation (PowerPoint)

To edit a PowerPoint presentation: use the toolbar to add slides, text, images, and other objects.

Step 4:  Save Your Changes:

After making edits, click on "File" -> Choose "Save" to overwrite the existing file or "Save As" to create a new version.

Step 5: Close the Document:

When you're done editing, click on the "X" button in the top-right corner to close the document

Save your change

Step 6: Exit WPS Office:  

Click on "File." -> Select "Exit" to close the application.

Congratulations! You've successfully edited PowerPoint documents using WPS Office.

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Q1: How do you write a reference list in PPT?

To create a reference list in PowerPoint:

a. Choose a citation style (e.g., APA, MLA).

b. Collect source information.

c. Create a new slide for your reference list.

d. Format it according to the chosen style.

e. List your sources with full details.

f. Ensure in-text citations match your reference list.

Q2: How do you in text cite a website in PowerPoint?

In-text citations for websites in a PowerPoint presentation:

a. Include the author's last name and publication date, e.g., (Smith, 2022).

b. If no author, use the title or organization name, e.g., ("Website Title," 2022).

c. If no publication date, use "n.d."

d. Add page numbers if quoting directly.

Q3: How do you format citations for books in PowerPoint?

To format citations for books in PowerPoint, follow these guidelines:

In-text citation: Include the author's last name and the publication year in parentheses, e.g., (Smith, 2022).

Reference list: List the book's citation details, including the author(s), book title in italics, publication date in parentheses, publisher, and page numbers (if applicable). Follow the specific citation style (e.g., APA, MLA) for formatting details.

Q4: Can you use footnotes for citations in a PowerPoint presentation?

Yes, you can use footnotes for citations in a PowerPoint presentation. To do so:

Insert a footnote on the slide where you want to provide additional citation information.

Include the full citation details in the footnote, including the author, publication date, title, and any other relevant information.

Make sure to format the footnote according to the chosen citation style.

Q5: How can you avoid plagiarism in a PowerPoint presentation?

To avoid plagiarism in a PowerPoint presentation:

Properly cite all sources you use, including text, images, and data.

Use quotation marks for direct quotes and provide in-text citations.

Paraphrase information from sources while still citing them.

Create a thorough reference list at the end of your presentation.

Follow your institution's or publication's guidelines for proper citation.

This comprehensive guide covers citing sources in PowerPoint presentations, emphasizing the importance of proper citations and the use of in-text citations in APA, MLA, and Chicago styles. In-text citations are crucial for maintaining academic integrity, credibility, and avoiding plagiarism.

To cite a PowerPoint presentation correctly, select the appropriate citation style (APA, MLA, or Chicago), gather essential information like author, title, date, and URL, and apply the specific citation format. It's essential to update citations when source details change, and reference management tools can facilitate this process. WPS Office , a useful tool for creating and editing presentations, offers a range of features, including a powerful PDF toolkit, templates, collaboration options, and safety and stability.

• 1. How to Cite a PowerPoint in APA [A Complete Guide]
• 2. How to Cite in a PowerPoint (APA, MLA, Chicago Style) The Ultimate Guide
• 3. Do You Know How to Cite a PDF in APA 7th Edition?
• 4. How to Cite a PowerPoint in MLA Style The Beginner’s Guide
• 5. How to Cite Sources in a PowerPoint_ A Comprehensive Guide
• 6. How to Cite a PDF in MLA without an Author: A Comprehensive Guide

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How to Cite a PowerPoint Presentation in APA 7?

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💡 Before we show you how to cite a PowerPoint in APA, we would like to tell you that all examples and explanations are about APA 7th edition .

In your PowerPoint presentation, you’re going to use a combination of texts and images to present information. You’ll need to cite the sources for these documents and media so your audience knows where to find out more about the topic.

This way, you will both adhere to the rules of using copyrighted information and show that your knowledge on the topic is well researched and you have spent time finding the resources.

What we will discuss in this article is the APA standard and how to make a proper PowerPoint citation in APA standard. Let’s dig deep.

Article Overview: 1. What is Apa? 2. Why do people use APA as a standard? 3. How to cite a PowerPoint presentation in APA? 4. How to Cite a Picture in PowerPoint?

1. What is APA?

APA is one of the most popular and widely used styles for writing research papers. This style of writing citations and citing sources is used in most social sciences – mainly psychology, sociology, and education. The acronym comes from A merican P sychological A ssociation. You can check APA’s website for more information .

2. Why do people use APA as a standard?

Before we tell you how to cite a PowerPoint presentation in APA style, we need to clarify the main reason why people use this style. As the most common standard, it is widely accepted around the world, and the manuals have been sold millions of times.

What makes the APA citation style so popular among educational institutions is that it gives “weight” to the documents that are being examined. Adding the sources and using the right way to present the sources could greatly influence the credibility of any thesis or PowerPoint presentation.

3. How to cite a PowerPoint presentation in APA?

There aren’t one or two ways to cite a Powerpoint presentation in APA. Why? Because there are different conditions that can affect the accessibility of the original source. Let’s see some of the most common occasions in citing PowerPoint presentations in APA style.

3.1. Citing a PowerPoint in APA – Accessible Documents

This is probably the best-case scenario for citations, as your readers will have access to the information, thus they can easily find the original source. Bear in mind you should not include PowerPoint presentations in the reference list if your audience cannot access them.

3.1.1. Citing in PowerPoint from public sites

When you have the source and it is an available webpage, you will have to link directly to the original source.

N.B.  You should always  cite the original source. If you have found a piece of statistics somewhere – let’s say a WeForum article , it is not the original source, thus you cannot refer to information that has not been published by the author.

3.1.2. Citing PowerPoints on password-protected portals

When it comes to citing from a university or other password-protected website, you should refer to the login page, as a direct link will lead to it. Let’s see an example I’ve made up myself.

N.B.  Sometimes, there is no author mentioned. In such cases, we proceed in two ways:

• If there is no author, but an organization that is behind the source:

What we have done is we have replaced the author’s name with the name of the organization that has published the report.

• If there is an unknown author.

In case there’s an unknown author, we replace their name with the title.

3.2. Citing a PowerPoint in APA – Inaccessible Documents

In case your PowerPoint slide is inaccessible to readers, then you have the option to cite the source as personal communication. Let’s see how this happens.

During the presentation, Peterson made a prediction that low-fare airlines will become dominant by 2030 (personal communication, June 3, 2022).

You can add personal communication citations in parentheses somewhere in the text but not in the reference list, as the original source cannot be directly tracked.

3.3. Citing a PowerPoint Slide

Sometimes, a slide during a presentation makes a great impression and you want to add it to your sources. When this happens, it’s better to cite the original source, rather than the PowerPoint slide itself, because of the requirements we discussed in 3.1.1.

4. How to Cite a Picture in PowerPoint?

If you want to learn how to cite a picture in PowerPoint in APA format, then you should apply some different techniques. What you need to do first is to have a very detailed look at the terms and conditions of the original image. Some images require attribution while others don’t.

Once you insert the image, you need to then create a new text box, align it at the center and write the following:

Figure 1. Image Description. Adapted from SOURCE . Retrieved from  SOURCE LINK.  Copyright by  COMPANY NAME COPYRIGHTS  (located at the bottom).

Let’s see how it’s done in practice.

Figure 1. Carbon Footprint and Renewable Energy. Adapted from GraphicMama. Retrieved from https://graphicmama.com/design-bundle/infographic-template-collection#flat-tree-vector-ecology-infographic-template. Copyright by © 2022 GraphicMama.com

Learning how to cite a PowerPoint presentation correctly is crucial if you are submitting your thesis or working on a serious project. The APA style has specific rules that should be followed for your presentations or paper dissertations to look formatted and credible.

If you found our content useful, why don’t you check some of our other tutorials related to PowerPoint and presentations in general:

• 10 Practical Tips to Grab Attention and Make an Impact in Your PowerPoint Presentation
• How to Add Audio to PowerPoint: The Quick Step-by-Step Guide
• How to Get Started with PowerPoint + Guide and Resources

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Cite a presentation or lecture in APA style

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• Select style:
• Archive material
• Chapter of an edited book
• Conference proceedings
• Dictionary entry
• Dissertation
• DVD, video, or film
• E-book or PDF
• Edited book
• Encyclopedia article
• Government publication
• Music or recording
• Online image or video
• Presentation
• Press release
• Religious text

Use the following template or our APA Citation Generator to cite a presentation or lecture. For help with other source types, like books, PDFs, or websites, check out our other guides. To have your reference list or bibliography automatically made for you, try our free citation generator .

Reference list

Place this part in your bibliography or reference list at the end of your assignment.

In-text citation

Place this part right after the quote or reference to the source in your assignment.

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• How to cite a Legislation in APA style
• How to cite a Magazine in APA style
• How to cite a Music or recording in APA style
• How to cite a Newspaper in APA style
• How to cite a Patent in APA style
• How to cite a Podcast in APA style
• How to cite a Presentation or lecture in APA style
• How to cite a Press release in APA style
• How to cite a Religious text in APA style
• How to cite a Report in APA style
• How to cite a Software in APA style

How to Cite a PowerPoint Presentation in Apa

If you’re working on a research project or presentation, citing your sources is an essential part of the process. In this article, we’ll guide you through the process of citing a PowerPoint presentation, specifically using APA citation style. We’ll cover everything from the importance of citing your sources to the formatting requirements for references pages. So, let’s get started!

Table of Contents

Understanding APA Citation Style for PowerPoint Presentations

APA (American Psychological Association) citation style is one of the most commonly used citation styles in academia. The APA citation style is used by social scientists and researchers alike to give credit to the sources they used in their research. The APA citation style is particularly useful for citing PowerPoint presentations because it provides a clear structure for citing sources that can help you avoid plagiarism and ensure your work is credible.

When citing a PowerPoint presentation in APA style, it is important to include the author’s name, the date the presentation was created, the title of the presentation, and the location where it was presented. Additionally, if the presentation was retrieved from an online source, the URL or DOI should be included in the citation. It is also important to note that any images or graphics used in the presentation should be cited as well, following the same guidelines as other sources.

Introduction to APA Guidelines for Citing PowerPoint Presentations

The APA guidelines for citing PowerPoint presentations are relatively easy to follow, and they can be broken down into two main parts: in-text citations and references. In-text citations are used when you are directly quoting or paraphrasing information from a PowerPoint presentation. References are a list of sources that you have cited in your work and may include the author, date of publication and other details such as the title and location of the presentation.

It is important to note that when citing a PowerPoint presentation, you should also include a description of the format in brackets after the title. For example, if the presentation was a lecture, you would include [Lecture slides] after the title. Additionally, if the presentation was retrieved online, you should include the URL or DOI in the reference. Following these guidelines will ensure that your citations and references are accurate and complete.

Why is Citing Sources in PowerPoint Presentations Important?

Citing sources in PowerPoint presentations is crucial because it helps you to avoid plagiarism and gives credit to the author of the original content. Citing sources also helps you to support your arguments with evidence and gives credibility to your work. A properly cited PowerPoint presentation can also help your audience to follow your argument and verify the information presented.

Moreover, citing sources in your PowerPoint presentation shows that you have conducted thorough research and have a deep understanding of the topic. It also demonstrates your respect for intellectual property and academic integrity. By citing sources, you are contributing to the academic community by acknowledging the work of others and building upon their ideas.

The Basic Elements of a PowerPoint Presentation Citation in APA Style

The basic elements of an APA citation for a PowerPoint presentation include the author’s name, the date of the presentation, the title, and the location of the presentation. The format for in-text citations includes the author’s last name and date of publication of the presentation. For example: (Smith, 2018).

It is important to note that if the PowerPoint presentation was retrieved from an online source, such as a website or database, the citation should also include the URL or DOI. Additionally, if the presentation was part of a larger conference or event, the citation should include the name and date of the conference or event. It is crucial to follow APA guidelines for citations to ensure proper credit is given to the original source and to avoid plagiarism.

How to Cite a PowerPoint Presentation in APA: Step-by-Step Guide

To cite a PowerPoint presentation in APA style, follow these steps:

• Begin with the surname of the author or presenter of the PowerPoint presentation.
• Follow the author’s name with their first initial
• Provide the date of the presentation in parentheses, followed by a period.
• Add the title of the presentation in italics.
• Add the retrieval statement, which includes the URL or DOI of the presentation if available.
• Here’s an example of a complete APA citation for a PowerPoint presentation:

Meyer, G. (2016). The Impact of Social Media on Adolescents. Retrieved from https://www.slideshare.net/GinaMeyer/the-impact-of-social-media-on-adolescents

It is important to note that if the PowerPoint presentation was part of a larger work, such as a conference or symposium, you should include the name and location of the event in the reference list entry, not in the in-text citation. Additionally, if the presentation was not publicly available online, but was accessed through a private source, such as an email attachment or personal communication, it should be cited as a personal communication instead of a PowerPoint presentation.

Finally, it is recommended to double-check the citation format with your instructor or the publication you are submitting to, as different sources may have slightly different requirements for citing PowerPoint presentations in APA style.

Tips and Tricks for Accurate Citation of PowerPoint Presentations in APA Style

Citing a PowerPoint presentation in APA style can be challenging, especially if you are new to the citation process. Here are some tips and tricks that can help you cite your sources accurately.

• Consider getting a reference management system that can help you keep track of your sources and generate citations automatically.
• Use citation generators to create your citations quickly and easily, but be sure to check the accuracy of the generated citations manually.
• Double-check your references before submitting your work to ensure they are complete and accurate.

It is important to note that when citing a PowerPoint presentation, you should include the author’s name, the date the presentation was created, the title of the presentation, and the location where it was presented. If the presentation is available online, you should also include the URL or DOI. Additionally, if you are citing specific slides within the presentation, you should include the slide number(s) in your citation.

Common Mistakes to Avoid When Citing a PowerPoint Presentation in APA

Even though citing PowerPoint presentations in APA style is relatively straightforward, there are some common mistakes that you should avoid.

• Not including all the necessary information in the citation, such as the author’s name, date, and title of the presentation.
• Forgetting to italicize the presentation title, which is a requirement in APA style.
• Inconsistently formatting your citations throughout your work.
• Failing to include in-text citations for direct quotes or paraphrasing information from the presentation.

Another common mistake to avoid when citing a PowerPoint presentation in APA style is failing to include the URL or DOI (Digital Object Identifier) of the presentation. Including the URL or DOI is important because it allows readers to easily access the presentation if they want to learn more about the topic. Additionally, if the presentation is not publicly available, you should include a note indicating that it is an unpublished presentation.

How to Reference a PowerPoint Presentation in APA: Examples and Samples

The following are examples of how to reference a PowerPoint presentation in APA style:

Buchanan, E. (2017). Encouraging Self-Regulated Learning in Higher Education. [PowerPoint presentation]. Retrieved from https://www.slideshare.net/EmmaBuchanan1/encouraging-selfregulation

Armitage, G. (2018). “Introducing Cryptocurrency”. [PowerPoint presentation]. Teesside University.

When referencing a PowerPoint presentation in APA style, it is important to include the author’s name, the year of publication, the title of the presentation, and the source of the presentation. Additionally, if the presentation was presented at a conference or event, it is important to include the name and location of the event.

Another important consideration when referencing a PowerPoint presentation in APA style is to ensure that the formatting is consistent with other references in your paper. This includes using proper capitalization, italicizing the title of the presentation, and using proper punctuation.

How to Cite Multiple Authors in a PowerPoint Presentation Using APA Style

To cite multiple authors in a PowerPoint presentation using APA style, follow these guidelines:

• For two authors, list both names separated by an ampersand (&).
• For three or more authors, list the first author followed by “et al.”
• If the authors are listed on the presentation slide, include only the first author’s name in the in-text citation, followed by “et al.”

Differences Between In-Text Citations and References for PowerPoint Presentations in APA Style

In-text citations and references are two essential parts of the citation process and are often confused with one another. In-text citations appear in the body of your work and are used to signal that you are using someone else’s ideas or words. On the other hand, references appear on a separate references page at the end of your work and provide the reader with detailed information about the sources cited in your work.

How to Cite Images, Graphs, and Tables from a PowerPoint Presentation in APA Style

Images, graphs, and tables are commonly used in PowerPoint presentations, and you may need to cite them in your work. Here are some guidelines for citing these elements in APA style:

• Use the author’s name, date, and title of the image, graph, or table to create an in-text citation. Example: (Smith, 2018, Figure 2).
• To cite images, include the type of medium in brackets. Example: [Image].
• To cite graphs or tables, include the type in brackets. Example: [Table].
• Include a full reference for each image, graph, or table in your references page.

How to Format Your References Page for APA Citations of PowerPoint Presentations

The references page is an essential part of the citation process, and it’s where you list all the sources you cited in your work. Here’s how to format your references page for APA citations of PowerPoint presentations:

• Start your references page on a new page at the end of your document.
• Title your references page “References” and center it at the top of the page.
• List your sources alphabetically by the author’s last name.
• Include the title of the presentation in italics, followed by the date of the presentation and the URL or DOI if available.

Best Practices for Properly Citing Sources in Your PowerPoint Presentation

Now that you know how to cite a PowerPoint presentation in APA style, here are some best practices to keep in mind:

• Always cite your sources accurately and completely, including authors, dates, titles, locations, and any other information needed to identify the source.
• Consistently use APA style formatting for in-text citations and references.
• Check the accuracy of your citations manually, even if you use citation generators or reference management software.
• Double-check any specific citation requirements from your professor or institution.

Conclusion: Mastering the Art of Citing a PowerPoint Presentation Using APA Style

Citing a PowerPoint presentation in APA style is an essential part of the research process, and it can be challenging if you are not familiar with APA citation guidelines. By following the guidelines provided in this article, you’ll be well on your way to mastering the art of citing a PowerPoint presentation in APA style and creating high-quality, credible, and well-researched work.

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MLA Works Cited: Electronic Sources (Web Publications)

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MLA (Modern Language Association) style is most commonly used to write papers and cite sources within the liberal arts and humanities. This resource, updated to reflect the MLA Handbook (9 th ed.), offers examples for the general format of MLA research papers, in-text citations, endnotes/footnotes, and the Works Cited page.

The MLA Handbook highlights principles over prescriptive practices. Essentially, a writer will need to take note of primary elements in every source, such as author, title, etc. and then assort them in a general format. Thus, by using this methodology, a writer will be able to cite any source regardless of whether it’s included in this list.

However, this guide will highlight a few concerns when citing digital sources in MLA style.

Best Practices for Managing Online Sources

Because online information can change or disappear, it is always a good idea to keep personal copies of important electronic information whenever possible. Downloading or even printing key documents ensures you have a stable backup. You can also use the Bookmark function in your web browser in order to build an easy-to-access reference for all of your project's sources (though this will not help you if the information is changed or deleted).

It is also wise to keep a record of when you first consult with each online source. MLA uses the phrase, “Accessed” to denote which date you accessed the web page when available or necessary. It is not required to do so, but it is encouraged (especially when there is no copyright date listed on a website).

Important Note on the Use of URLs in MLA

Include a URL or web address to help readers locate your sources. Because web addresses are not static (i.e., they change often) and because documents sometimes appear in multiple places on the web (e.g., on multiple databases), MLA encourages the use of citing containers such as Youtube, JSTOR, Spotify, or Netflix in order to easily access and verify sources. However, MLA only requires the www. address, so eliminate all https:// when citing URLs.

Many scholarly journal articles found in databases include a DOI (digital object identifier). If a DOI is available, cite the DOI number instead of the URL.

Online newspapers and magazines sometimes include a “permalink,” which is a shortened, stable version of a URL. Look for a “share” or “cite this” button to see if a source includes a permalink. If you can find a permalink, use that instead of a URL.

Abbreviations Commonly Used with Electronic Sources

If page numbers are not available, use par. or pars. to denote paragraph numbers. Use these in place of the p. or pp. abbreviation. Par. would be used for a single paragraph, while pars. would be used for a span of two or more paragraphs.

Basic Style for Citations of Electronic Sources (Including Online Databases)

Here are some common features you should try to find before citing electronic sources in MLA style. Not every web page will provide all of the following information. However, collect as much of the following information as possible:

• Author and/or editor names (if available); last names first.
• "Article name in quotation marks."
• Title of the website, project, or book in italics.
• Any version numbers available, including editions (ed.), revisions, posting dates, volumes (vol.), or issue numbers (no.).
• Publisher information, including the publisher name and publishing date.
• Take note of any page numbers (p. or pp.) or paragraph numbers (par. or pars.).
• DOI (if available, precede it with "https://doi.org/"), otherwise a URL (without the https://) or permalink.
• Date you accessed the material (Date Accessed). While not required, saving this information it is highly recommended, especially when dealing with pages that change frequently or do not have a visible copyright date.

Use the following format:

Author. "Title." Title of container (self contained if book) , Other contributors (translators or editors), Version (edition), Number (vol. and/or no.), Publisher, Publication Date, Location (pages, paragraphs and/or URL, DOI or permalink). 2 nd container’s title , Other contributors, Version, Number, Publisher, Publication date, Location, Date of Access (if applicable).

Citing an Entire Web Site

When citing an entire website, follow the same format as listed above, but include a compiler name if no single author is available.

Author, or compiler name (if available). Name of Site. Version number (if available), Name of institution/organization affiliated with the site (sponsor or publisher), date of resource creation (if available), DOI (preferred), otherwise include a URL or permalink. Date of access (if applicable).

Editor, author, or compiler name (if available). Name of Site . Version number, Name of institution/organization affiliated with the site (sponsor or publisher), date of resource creation (if available), URL, DOI or permalink. Date of access (if applicable).

The Purdue OWL Family of Sites . The Writing Lab and OWL at Purdue and Purdue U, 2008, owl.english.purdue.edu/owl. Accessed 23 Apr. 2008.

Felluga, Dino. Guide to Literary and Critical Theory . Purdue U, 28 Nov. 2003, www.cla.purdue.edu/english/theory/. Accessed 10 May 2006.

Course or Department Websites

Give the instructor name. Then list the title of the course (or the school catalog designation for the course) in italics. Give appropriate department and school names as well, following the course title.

Felluga, Dino. Survey of the Literature of England . Purdue U, Aug. 2006, web.ics.purdue.edu/~felluga/241/241/Home.html. Accessed 31 May 2007.

English Department . Purdue U, 20 Apr. 2009, www.cla.purdue.edu/english/. Accessed 31 May 2015.

A Page on a Web Site

For an individual page on a Web site, list the author or alias if known, followed by an indication of the specific page or article being referenced. Usually, the title of the page or article appears in a header at the top of the page. Follow this with the information covered above for entire Web sites. If the publisher is the same as the website name, only list it once.

Lundman, Susan. “How to Make Vegetarian Chili.”  eHow , www.ehow.com/how_10727_make-vegetarian-chili.html. Accessed 6 July 2015.

“ Athlete's Foot - Topic Overview. ”   WebMD , 25 Sept. 2014, www.webmd.com/skin-problems-and-treatments/tc/athletes-foot-topic-overview.

Citations for e-books closely resemble those for physical books. Simply indicate that the book in question is an e-book by putting the term "e-book" in the "version" slot of the MLA template (i.e., after the author, the title of the source, the title of the container, and the names of any other contributors).

Silva, Paul J.  How to Write a Lot: A Practical Guide to Productive Academic Writing. E-book, American Psychological Association, 2007.

If the e-book is formatted for a specific reader device or service, you can indicate this by treating this information the same way you would treat a physical book's edition number. Often, this will mean replacing "e-book" with "[App/Service] ed."

Machiavelli, Niccolo.  The Prince , translated by W. K. Marriott, Kindle ed., Library of Alexandria, 2018.

Note:  The MLA considers the term "e-book" to refer to publications formatted specifically for reading with an e-book reader device (e.g., a Kindle) or a corresponding web application. These e-books will not have URLs or DOIs. If you are citing book content from an ordinary webpage with a URL, use the "A Page on a Web Site" format above.

An Image (Including a Painting, Sculpture, or Photograph)

Provide the artist's name, the work of art italicized, the date of creation, the institution and city where the work is housed. Follow this initial entry with the name of the Website in italics, and the date of access.

Goya, Francisco. The Family of Charles IV . 1800. Museo Nacional del Prado, Madrid. Museo Nacional del Prado , www.museodelprado.es/en/the-collection/art-work/the-family-of-carlos-iv/f47898fc-aa1c-48f6-a779-71759e417e74. Accessed 22 May 2006.

Klee, Paul. Twittering Machine . 1922. Museum of Modern Art, New York. The Artchive , www.artchive.com/artchive/K/klee/twittering_machine.jpg.html. Accessed May 2006.

If the work cited is available on the web only, then provide the name of the artist, the title of the work, and then follow the citation format for a website. If the work is posted via a username, use that username for the author.

Adams, Clifton R. “People Relax Beside a Swimming Pool at a Country Estate Near Phoenix, Arizona, 1928.” Found, National Geographic Creative, 2 June 2016, natgeofound.tumblr.com/.

An Article in a Web Magazine

Provide the author name, article name in quotation marks, title of the web magazine in italics, publisher name, publication date, URL, and the date of access.

Bernstein, Mark. “ 10 Tips on Writing the Living Web. ”   A List Apart: For People Who Make Websites , 16 Aug. 2002, alistapart.com/article/writeliving. Accessed 4 May 2009.

An Article in an Online Scholarly Journal

For all online scholarly journals, provide the author(s) name(s), the name of the article in quotation marks, the title of the publication in italics, all volume and issue numbers, and the year of publication. Include a DOI if available, otherwise provide a URL or permalink to help readers locate the source.

Article in an Online-only Scholarly Journal

MLA requires a page range for articles that appear in Scholarly Journals. If the journal you are citing appears exclusively in an online format (i.e. there is no corresponding print publication) that does not make use of page numbers, indicate the URL or other location information.

Dolby, Nadine. “Research in Youth Culture and Policy: Current Conditions and Future Directions.” Social Work and Society: The International Online-Only Journal, vol. 6, no. 2, 2008, www.socwork.net/sws/article/view/60/362. Accessed 20 May 2009.

Article in an Online Scholarly Journal That Also Appears in Print

Cite articles in online scholarly journals that also appear in print as you would a scholarly journal in print, including the page range of the article . Provide the URL and the date of access.

Wheelis, Mark. “ Investigating Disease Outbreaks Under a Protocol to the Biological and Toxin Weapons Convention. ”   Emerging Infectious Diseases , vol. 6, no. 6, 2000, pp. 595-600, wwwnc.cdc.gov/eid/article/6/6/00-0607_article. Accessed 8 Feb. 2009.

An Article from an Online Database (or Other Electronic Subscription Service)

Cite online databases (e.g. LexisNexis, ProQuest, JSTOR, ScienceDirect) and other subscription services as containers. Thus, provide the title of the database italicized before the DOI or URL. If a DOI is not provided, use the URL instead. Provide the date of access if you wish.

Alonso, Alvaro, and Julio A. Camargo. “ Toxicity of Nitrite to Three Species of Freshwater Invertebrates. ”   Environmental Toxicology, vol. 21, no. 1, 3 Feb. 2006, pp. 90-94. Wiley Online Library , https://doi.org/10.1002/tox.20155. Accessed 26 May 2009.

Langhamer, Claire. “Love and Courtship in Mid-Twentieth-Century England.” Historical Journal, vol. 50, no. 1, 2007, pp. 173-96. ProQuest , https://doi.org/10.1017/S0018246X06005966. Accessed 27 May 2009.

E-mail (including E-mail Interviews)

Give the author of the message, followed by the subject line in quotation marks. State to whom the message was sent with the phrase, “Received by” and the recipient’s name. Include the date the message was sent. Use standard capitalization.

Kunka, Andrew. “ Re: Modernist Literature. ”  Received by John Watts, 15 Nov. 2000.

Neyhart, David. “ Re: Online Tutoring. ” Received by Joe Barbato, 1 Dec. 2016.

A Listserv, Discussion Group, or Blog Posting

Cite web postings as you would a standard web entry. Provide the author of the work, the title of the posting in quotation marks, the web site name in italics, the publisher, and the posting date. Follow with the date of access. Include screen names as author names when author name is not known. If both names are known, place the author’s name in brackets.

Author or compiler name (if available). “Posting Title.” Name of Site , Version number (if available), Name of institution/organization affiliated with the site (sponsor or publisher), URL. Date of access.

Salmar1515 [Sal Hernandez]. “Re: Best Strategy: Fenced Pastures vs. Max Number of Rooms?” BoardGameGeek , 29 Sept. 2008, boardgamegeek.com/thread/343929/best-strategy-fenced-pastures-vs-max-number-rooms. Accessed 5 Apr. 2009.

Begin with the user's Twitter handle in place of the author’s name. Next, place the tweet in its entirety in quotations, inserting a period after the tweet within the quotations. Include the date and time of posting, using the reader's time zone; separate the date and time with a comma and end with a period. Include the date accessed if you deem necessary.

@tombrokaw. “ SC demonstrated why all the debates are the engines of this campaign. ”   Twitter, 22 Jan. 2012, 3:06 a.m., twitter.com/tombrokaw/status/160996868971704320.

@PurdueWLab. “ Spring break is around the corner, and all our locations will be open next week. ”   Twitter , 5 Mar. 2012, 12:58 p.m., twitter.com/PurdueWLab/status/176728308736737282.

A YouTube Video

Video and audio sources need to be documented using the same basic guidelines for citing print sources in MLA style. Include as much descriptive information as necessary to help readers understand the type and nature of the source you are citing. If the author’s name is the same as the uploader, only cite the author once. If the author is different from the uploader, cite the author’s name before the title.

McGonigal, Jane. “Gaming and Productivity.” YouTube , uploaded by Big Think, 3 July 2012, www.youtube.com/watch?v=mkdzy9bWW3E.

“8 Hot Dog Gadgets put to the Test.” YouTube, uploaded by Crazy Russian Hacker, 6 June 2016, www.youtube.com/watch?v=WBlpjSEtELs.

A Comment on a Website or Article

List the username as the author. Use the phrase, Comment on, before the title. Use quotation marks around the article title. Name the publisher, date, time (listed on near the comment), and the URL.

Not Omniscient Enough. Comment on “ Flight Attendant Tells Passenger to ‘Shut Up’ After Argument Over Pasta. ”  ABC News, 9 Jun 2016, 4:00 p.m., abcnews.go.com/US/flight-attendant-tells-passenger-shut-argument-pasta/story?id=39704050.

How Do We Know Climate Change Is Real?

There is unequivocal evidence that Earth is warming at an unprecedented rate. Human activity is the principal cause.

• While Earth’s climate has changed throughout its history , the current warming is happening at a rate not seen in the past 10,000 years.
• According to the Intergovernmental Panel on Climate Change ( IPCC ), "Since systematic scientific assessments began in the 1970s, the influence of human activity on the warming of the climate system has evolved from theory to established fact." 1
• Scientific information taken from natural sources (such as ice cores, rocks, and tree rings) and from modern equipment (like satellites and instruments) all show the signs of a changing climate.
• From global temperature rise to melting ice sheets, the evidence of a warming planet abounds.

The rate of change since the mid-20th century is unprecedented over millennia.

Earth's climate has changed throughout history. Just in the last 800,000 years, there have been eight cycles of ice ages and warmer periods, with the end of the last ice age about 11,700 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives.

The current warming trend is different because it is clearly the result of human activities since the mid-1800s, and is proceeding at a rate not seen over many recent millennia. 1 It is undeniable that human activities have produced the atmospheric gases that have trapped more of the Sun’s energy in the Earth system. This extra energy has warmed the atmosphere, ocean, and land, and widespread and rapid changes in the atmosphere, ocean, cryosphere, and biosphere have occurred.

Related Reading

Do scientists agree on climate change?

Yes, the vast majority of actively publishing climate scientists – 97 percent – agree that humans are causing global warming and climate change.

Earth-orbiting satellites and new technologies have helped scientists see the big picture, collecting many different types of information about our planet and its climate all over the world. These data, collected over many years, reveal the signs and patterns of a changing climate.

Scientists demonstrated the heat-trapping nature of carbon dioxide and other gases in the mid-19th century. 2 Many of the science instruments NASA uses to study our climate focus on how these gases affect the movement of infrared radiation through the atmosphere. From the measured impacts of increases in these gases, there is no question that increased greenhouse gas levels warm Earth in response.

"Scientific evidence for warming of the climate system is unequivocal." — Intergovernmental Panel on Climate Change

Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that Earth’s climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks. This ancient, or paleoclimate, evidence reveals that current warming is occurring roughly 10 times faster than the average rate of warming after an ice age. Carbon dioxide from human activities is increasing about 250 times faster than it did from natural sources after the last Ice Age. 3

The Evidence for Rapid Climate Change Is Compelling:

Global temperature is rising.

The planet's average surface temperature has risen about 2 degrees Fahrenheit (1 degrees Celsius) since the late 19th century, a change driven largely by increased carbon dioxide emissions into the atmosphere and other human activities. 4 Most of the warming occurred in the past 40 years, with the seven most recent years being the warmest. The years 2016 and 2020 are tied for the warmest year on record. 5

The Ocean Is Getting Warmer

The ocean has absorbed much of this increased heat, with the top 100 meters (about 328 feet) of ocean showing warming of 0.67 degrees Fahrenheit (0.33 degrees Celsius) since 1969. 6 Earth stores 90% of the extra energy in the ocean.

The Ice Sheets Are Shrinking

The Greenland and Antarctic ice sheets have decreased in mass. Data from NASA's Gravity Recovery and Climate Experiment show Greenland lost an average of 279 billion tons of ice per year between 1993 and 2019, while Antarctica lost about 148 billion tons of ice per year. 7

Glaciers Are Retreating

Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska, and Africa. 8

Snow Cover Is Decreasing

Satellite observations reveal that the amount of spring snow cover in the Northern Hemisphere has decreased over the past five decades and the snow is melting earlier. 9

Sea Level Is Rising

Global sea level rose about 8 inches (20 centimeters) in the last century. The rate in the last two decades, however, is nearly double that of the last century and accelerating slightly every year. 10

Arctic Sea Ice Is Declining

Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades. 11

Extreme Events Are Increasing in Frequency

The number of record high temperature events in the United States has been increasing, while the number of record low temperature events has been decreasing, since 1950. The U.S. has also witnessed increasing numbers of intense rainfall events. 12

Ocean Acidification Is Increasing

Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30%. 13 , 14 This increase is due to humans emitting more carbon dioxide into the atmosphere and hence more being absorbed into the ocean. The ocean has absorbed between 20% and 30% of total anthropogenic carbon dioxide emissions in recent decades (7.2 to 10.8 billion metric tons per year). 1 5 , 16

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2. In 1824, Joseph Fourier calculated that an Earth-sized planet, at our distance from the Sun, ought to be much colder. He suggested something in the atmosphere must be acting like an insulating blanket. In 1856, Eunice Foote discovered that blanket, showing that carbon dioxide and water vapor in Earth's atmosphere trap escaping infrared (heat) radiation. In the 1860s, physicist John Tyndall recognized Earth's natural greenhouse effect and suggested that slight changes in the atmospheric composition could bring about climatic variations. In 1896, a seminal paper by Swedish scientist Svante Arrhenius first predicted that changes in atmospheric carbon dioxide levels could substantially alter the surface temperature through the greenhouse effect. In 1938, Guy Callendar connected carbon dioxide increases in Earth’s atmosphere to global warming. In 1941, Milutin Milankovic linked ice ages to Earth’s orbital characteristics. Gilbert Plass formulated the Carbon Dioxide Theory of Climate Change in 1956.

3. IPCC Sixth Assessment Report, WG1, Chapter 2 Vostok ice core data; NOAA Mauna Loa CO2 record O. Gaffney, W. Steffen, "The Anthropocene Equation." The Anthropocene Review 4, issue 1 (April 2017): 53-61. https://doi.org/abs/10.1177/2053019616688022.

4. https://www.ncei.noaa.gov/monitoring https://crudata.uea.ac.uk/cru/data/temperature/ http://data.giss.nasa.gov/gistemp

5. https://www.giss.nasa.gov/research/news/20170118/

6. S. Levitus, J. Antonov, T. Boyer, O Baranova, H. Garcia, R. Locarnini, A. Mishonov, J. Reagan, D. Seidov, E. Yarosh, M. Zweng, " NCEI ocean heat content, temperature anomalies, salinity anomalies, thermosteric sea level anomalies, halosteric sea level anomalies, and total steric sea level anomalies from 1955 to present calculated from in situ oceanographic subsurface profile data (NCEI Accession 0164586), Version 4.4. (2017) NOAA National Centers for Environmental Information. https://www.nodc.noaa.gov/OC5/3M_HEAT_CONTENT/index3.html K. von Schuckmann, L. Cheng, L,. D. Palmer, J. Hansen, C. Tassone, V. Aich, S. Adusumilli, H. Beltrami, H., T. Boyer, F. Cuesta-Valero, D. Desbruyeres, C. Domingues, A. Garcia-Garcia, P. Gentine, J. Gilson, M. Gorfer, L. Haimberger, M. Ishii, M., G. Johnson, R. Killick, B. King, G. Kirchengast, N. Kolodziejczyk, J. Lyman, B. Marzeion, M. Mayer, M. Monier, D. Monselesan, S. Purkey, D. Roemmich, A. Schweiger, S. Seneviratne, A. Shepherd, D. Slater, A. Steiner, F. Straneo, M.L. Timmermans, S. Wijffels. "Heat stored in the Earth system: where does the energy go?" Earth System Science Data 12, Issue 3 (07 September 2020): 2013-2041. https://doi.org/10.5194/essd-12-2013-2020.

7. I. Velicogna, Yara Mohajerani, A. Geruo, F. Landerer, J. Mouginot, B. Noel, E. Rignot, T. Sutterly, M. van den Broeke, M. Wessem, D. Wiese, "Continuity of Ice Sheet Mass Loss in Greenland and Antarctica From the GRACE and GRACE Follow-On Missions." Geophysical Research Letters 47, Issue 8 (28 April 2020): e2020GL087291. https://doi.org/10.1029/2020GL087291.

8. National Snow and Ice Data Center World Glacier Monitoring Service

9. National Snow and Ice Data Center D.A. Robinson, D. K. Hall, and T. L. Mote, "MEaSUREs Northern Hemisphere Terrestrial Snow Cover Extent Daily 25km EASE-Grid 2.0, Version 1 (2017). Boulder, Colorado USA. NASA National Snow and Ice Data Center Distributed Active Archive Center. doi: https://doi.org/10.5067/MEASURES/CRYOSPHERE/nsidc-0530.001 . http://nsidc.org/cryosphere/sotc/snow_extent.html Rutgers University Global Snow Lab. Data History

10. R.S. Nerem, B.D. Beckley, J. T. Fasullo, B.D. Hamlington, D. Masters, and G.T. Mitchum, "Climate-change–driven accelerated sea-level rise detected in the altimeter era." PNAS 15, no. 9 (12 Feb. 2018): 2022-2025. https://doi.org/10.1073/pnas.1717312115.

11. https://nsidc.org/cryosphere/sotc/sea_ice.html Pan-Arctic Ice Ocean Modeling and Assimilation System (PIOMAS, Zhang and Rothrock, 2003) http://psc.apl.washington.edu/research/projects/arctic-sea-ice-volume-anomaly/ http://psc.apl.uw.edu/research/projects/projections-of-an-ice-diminished-arctic-ocean/

12. USGCRP, 2017: Climate Science Special Report: Fourth National Climate Assessment, Volume I [Wuebbles, D.J., D.W. Fahey, K.A. Hibbard, D.J. Dokken, B.C. Stewart, and T.K. Maycock (eds.)]. U.S. Global Change Research Program, Washington, DC, USA, 470 pp, https://doi.org/10.7930/j0j964j6 .

13. http://www.pmel.noaa.gov/co2/story/What+is+Ocean+Acidification%3F

14. http://www.pmel.noaa.gov/co2/story/Ocean+Acidification

15. C.L. Sabine, et al., “The Oceanic Sink for Anthropogenic CO2.” Science 305 (16 July 2004): 367-371. https://doi.org/10.1126/science.1097403.

16. Special Report on the Ocean and Cryosphere in a Changing Climate , Technical Summary, Chapter TS.5, Changing Ocean, Marine Ecosystems, and Dependent Communities, Section 5.2.2.3. https://www.ipcc.ch/srocc/chapter/technical-summary/

Header image shows clouds imitating mountains as the sun sets after midnight as seen from Denali's backcountry Unit 13 on June 14, 2019. Credit: NPS/Emily Mesner

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