M. C. HOWATSON and IAN CHILVERS. "Cinna." The Concise Oxford Companion to Classical Literature. 1996. Encyclopedia.com. 25 Nov. 2009 <http://www.encyclopedia.com>.
M. C. HOWATSON and IAN CHILVERS. "Cinna." The Concise Oxford Companion to Classical Literature. 1996. Encyclopedia.com. (November 25, 2009). http://www.encyclopedia.com/doc/1O9-Cinna.html
M. C. HOWATSON and IAN CHILVERS. "Cinna." The Concise Oxford Companion to Classical Literature. 1996. Retrieved November 25, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O9-Cinna.html