General structure: Author's last name, Initials. (Date). Title of document [Format description]. Retrieved from http://URL
Use a format description when the format is something out of the ordinary, such as a blog post or lecture notes.
All 33 Chile miners freed in flawless rescue. (2010, October 13). Retrieved from http://www.nbcnews.com/id/39625809/ns/world_news-americas/
Barack Obama. (2009b, October 9). Humbled. http://my.barackobama.com/page/community/post/obamaforamerica/gGM45m [Facebook update]. Retrieved from http://www.facebook.com/posted.php? id=6815841748&share_id=154954250775&comments=1#s154954250775
The College of William & Mary. (n.d.). The William & Mary mission statement. Retrieved from http://www.wm.edu/about/administration/provost/about/mission/
Freakonomics. (2010, October 29). E-ZPass is a life-saver (literally) [Blog post]. Retrieved from http://freakonomics.blogs.nytimes.com/2010/10/29/e-zpass-is-a-life-saver-literally/
Psychology. (n.d.). In Wikipedia. Retrieved October 14, 2009, from http://en.wikipedia.org/wiki/Psychology
The White House, Office of the Press Secretary. (2010). Administration officials continue travel across the country holding “Recovery Summer” events, project site visits [Press release]. Retrieved from http://www.whitehouse.gov/the-press-office/administration-officials-continue-travel-across-country-holding-recovery-summer-eve
[examples from the APA Style Blog, http://blog.apastyle.org/apastyle/2010/11/how-to-cite-something-you-found-on-a-website-in-apa-style.html}