ALWAYS check the citation generated against the guidelines given by your instructor.
Short (1:24) video on when to reference common knowledge.
Sample citation for a magazine article found in Proquest
Rozen, Laura. "Strange Bedfellows." Nation 10 Nov. 2003: 6-7. Proquest.
Web. 16 Dec. 2003.
Sample book citation
Tan, Amy. Saving Fish from Drowning. New York: Putnam, 2005. Print.
Sample web site citation
United States. Environmental Protection Agency. Drinking Water Standards. EPA,
28; Nov. 2006. Web. 24 Jan. 2009.