The person or group who uploaded the video is credited for the author even if they did not create the work.
Author, A. A. (Year, Month Day of upload). Title of video [Video]. Title of Stream. URL
Rudd, K. (2009, September 29). Update on new G20 arrangements [Video]. YouTube. http://www.youtube.com/watch?v=i8ldJ-0S5rs
Cutts, S. (2017, November 24). Happiness [video]. Vimeo. https://vimeo.com/244405542
University of Oxford. (2018, December 6). How do geckos walk on water? [Video]. YouTube. https://www.youtube.com/watch?v=qm1xGfOZJc8
When the author is not named / unknown, the title of the work replaces the author position. If the work is signed "Anonymous", use anonymous as the author.
Title of work. (Year of publication). Publisher. DOI or URL
Macroeconomics, prices and quantities: Essays in memory of Arthur M. Okun. (1983). Blackwell.
If the date is not known use n.d. in place of the year. If you have an approximate date use the abbreviation ca. (circa) and the approximate year.
Author, A. A. (ca. year). Title of work. Publisher. DOI or URL
Author, A. A. (n.d.). Title of work. Publisher. DOI or URL
Smythe, V. (ca. 2007). Ant colonies: How they communicate. Emu.
Browne, J. D. (n.d.). Forensic science as a career. Tower.
Secondary source refers to information first reported in another source, the primary source. If it is possible, find the original source and read it, citing the original source. If this is not possible then use the procedure below.
Provide a reference to the secondary source (the source you read) and, in-text, identify the primary source then write "as cited in" the secondary source that you used.
(Author 1 as cited in Author 2, Year)
Author 1 (as cited in Author 2, Year)
Lilly (as cited in Maxwell, 1999) stated that ...
"..." (Schwartz as cited in Burton, Westen, & Kowalski, 2009, p.63)
Maxwell, F. (1999). Phonology. Brooks Cole.
Burton, L., Westen, D., & Kowalski, R. (2009). Psychology. Wiley.