Ancient Greek Ideas on Speech, Language, and Civilization. : Oxford University Press, 2003-10-09. Oxford Scholarship Online. 2010-01-01. Date Accessed 20 May. 2013 <http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199256167.001.0001/acprof-9780199256167>.
(2003-10-09). Ancient Greek Ideas on Speech, Language, and Civilization. : Oxford University Press. Retrieved 20 May. 2013, from http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199256167.001.0001/acprof-9780199256167.
Ancient Greek Ideas on Speech, Language, and Civilization. : Oxford University Press, 2003-10-09. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199256167.001.0001/acprof-9780199256167.
Gera DL. Ancient Greek Ideas on Speech, Language, and Civilization. Oxford University Press; 2003. http://www.oxfordscholarship.com/view/10.1093/acprof:oso/9780199256167.001.0001/acprof-9780199256167. Accessed May 20, 2013.