APA Style Citation
Robert A. Heinlein. (n.d.). BrainyQuote.com. Retrieved May 22, 2013, from BrainyQuote.com Web site: http://www.brainyquote.com/quotes/quotes/r/robertahe137026.html
Chicago Style Citation
Robert A. Heinlein. BrainyQuote.com, Xplore Inc, 2013. http://www.brainyquote.com/quotes/quotes/r/robertahe137026.html, accessed May 22, 2013.
MLA Style Citation
"Robert A. Heinlein." BrainyQuote.com. Xplore Inc, 2013. 22 May 2013. http://www.brainyquote.com/quotes/quotes/r/robertahe137026.html
