Follow this format when citing slideshows:
Author, A.N. (Year). Presentation title in sentence case and italics [file format]. Retrieved from http://www.website.com
Here’s an example:
Protevi, J. (2008). Deleuze and the brain: Ontology and neuropolitics [PowerPoint slides]. Retrieved from http://www.protevi.com/john/PowerPoints/Deleuze_Brain.pdf
Note that the website address, or URL, should not have any final punctuation. Do not hyphenate URLs that break across lines. Instead, break them before a slash or period.
Alphabetize the reference by the last name of the first author listed. Separate the names of multiple authors with commas and place an ampersand (&) before the name of the last author listed:
Deleuze, G., & Guattari, F.
Include the names of all joint authors up to seven. If a presentation has more than seven authors, put an ellipsis (…) after the seventh author’s name, followed by the name of the last author listed:
Kracauer, S., Yates, F., Fort, C., Boehme, J., Lacan, J., Camporesi, P., Scholem, G., … Fludd, R.
Alphabetize the reference by organization or group name if individual authors are not credited:
Amnesty International (2011). Speak free [PowerPoint slides]. Retrieved from http://www.amnesty.org.uk/uploads/documents/doc_21553.ppt
List each reference in the hanging indent format, where the first line is flush with the left margin and succeeding lines are indented 0.5 inches.
Cite the slideshow within your text by the author's last name and year:
(Protevi, 2008)
Cite slideshows with three to five authors by listing all authors in the first citation:
(Kracauer, Yates, & Fort, 2001)
Use "et al." after the first author's name in any additional citations:
(Kracauer et al., 2001)
Cite slideshows with six or more authors by using “et al.” after the first author's name, as in the example immediately above.