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Biology: APA style

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Academic Writer Tutorial: Basics of Seventh Edition APA Style

Work through this e-module at your own pace. 

APA Style Guide

Citation resources for APA style

Formatting style and grammar resources for APA

Citing Images

You must cite the source of an image used in a paper, lab report, presentation or seminar. When citing an image in the body of your paper, cite it in one of two ways:

Credit the source at the end of the image caption:

“Reproduced with permission from (a) H.E. Hoekstra and (c) J.L. Feder.”

“Reproduced from Thakur et al. (2008a) with permission (originally published in Nature,”

Credit images found on the Internet as follows:

Figure 2.  “Water lily [Nymphaeaceae] blooming in Saint Petersburg’s Botanical Gardens, September 2005,” by A. L. Olsen. Retrieved from the NBII (National Biological Information Infrastructure) Digital Image Library website, maintained by the Center for Biological Informatics of the U.S. Geological Survey,

How to cite a video in APA format

Sample citation for YouTube video: 

Harvard University. (2019, August 28). Soft robotic gripper for jellyfish [Video]. YouTube.

Sample citation for YouTube channel:

Walker, A. (n.d.). Playlists [YouTube channel]. YouTube. Retrieved October 8, 2019, from

JoVE video with no author listed: 

Jove. (2021) Molecular cloning [video]. Jove.

Jove video with author listed:

Smith J, Kemp A. (March 2019) Molecular cloning and ethics considerations [video]. Jove.

The date noted should be the date that the video was uploaded.


My thanks to Liaison Librarian, Rebecca Hutchinson, for providing so much of the content for this page: