On page 215 of their guide, example 77 is for a Video Blog Post.
Format:
Author
or Producer Last Name, First Name. (Year, Month
Date). Title of the
video [Video file]. Retrieved from
http://-list the entire website-
Example:
Norton, R. (2006, November 4). How to train a cat to operate
a light switch [Video file]. Retrieved from
http://www.youtube.com/watch?v=Vja83KLQXZs
The in-text citation for APA would depend on the number of authors,
but primarily is the author's name and the year (Norton, 2006).