APA Style Citation
B. F. Skinner. (n.d.). BrainyQuote.com. Retrieved May 21, 2013, from BrainyQuote.com Web site: http://www.brainyquote.com/quotes/quotes/b/bfskinne385025.html
Chicago Style Citation
B. F. Skinner. BrainyQuote.com, Xplore Inc, 2013. http://www.brainyquote.com/quotes/quotes/b/bfskinne385025.html, accessed May 21, 2013.
MLA Style Citation
"B. F. Skinner." BrainyQuote.com. Xplore Inc, 2013. 21 May 2013. http://www.brainyquote.com/quotes/quotes/b/bfskinne385025.html
