The Roman World of Cicero's De Oratore. : Oxford University Press, 2004-08-05. Oxford Scholarship Online. 2010-01-01. Date Accessed 22 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199263158.001.0001/acprof-9780199263158>.
(2004-08-05). The Roman World of Cicero's De Oratore. : Oxford University Press. Retrieved 22 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199263158.001.0001/acprof-9780199263158.
The Roman World of Cicero's De Oratore. : Oxford University Press, 2004-08-05. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199263158.001.0001/acprof-9780199263158.
Fantham E. The Roman World of Cicero's De Oratore. Oxford University Press; 2004. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199263158.001.0001/acprof-9780199263158. Accessed May 22, 2013.