"You Quote It, You Note It!" A tutorial about plagiarism
http://library.acadiau.ca/tutorials/plagiarism/
Use the Citation Machine website to format your sources
http://citationmachine.net/
This is another website that can help you with citing sources
http://www.noodletools.com
Purdue University's general format guidelines (includes format for visuals such as tables and images)
http://owl.english.purdue.edu/owl/resource/560/01
Excerpts from the APA Style Guide to Electronic References (2007)
http://www.apastyle.org/elecref.html
Color-coded example of a reference list
http://www.liu.edu/CWIS/CWP/library/workshop/citapa.htm