Answered By: Mary Kaye Hooker
Last Updated: Sep 12, 2018     Views: 362

You can use the citation example for presentation/slide or computer software following the Purdue OWL APA citation guide page on electronic resources here

https://owl.english.purdue.edu/owl/resource/560/10/

Purdue OWL says

Online Lecture Notes and Presentation Slides

When citing online lecture notes, be sure to provide the file format in brackets after the lecture title (e.g. PowerPoint slides, Word document).

Hallam, A. Duality in consumer theory [PDF document]. Retrieved from Lecture Notes Online Web site: http://www.econ.iastate.edu/classes/econ501/Hallam/
index.html

Roberts, K. F. (1998). Federal regulations of chemicals in the environment [PowerPoint slides]. Retrieved from http://siri.uvm.edu/ppt/40hrenv/index.html