Note: The OnTRACK lessons follow the Chicago Manual of Style for matters of style and usage.
“Criticism of Wikipedia.” wikipedia. http://en.wikipedia.org/wiki/Criticism_of_Wikipedia.
“Perry Paxton Quotes.” ThinkExist. http://thinkexist.com/quotes/perry_paxton/.
“Research and Citation Resources.” Online Writing Lab. Purdue University.
http://owl.english.purdue.edu/owl/section/2/.
“What is new in the seventh edition of the MLA Handbook?” Modern Language Association. Accessed October 2, 2014. http://www.mla.org/style/handbook_faq/whatsnew_7edhandbook.