Plato's Protagoras :
proceedings of the third symposium Platonicum Pragense /
edited by Aleš Havlíček and Filip Karfík.

APA Citation

Symposium Platonicum Pragense (3rd : 2001 : Prague, C. Republic)., Karfík, F., Havlíček, A. (2003). Plato's Protagoras: proceedings of the third symposium Platonicum Pragense. Prague: OIKOYMENH.

MLA Citation

Symposium Platonicum Pragense (3rd : 2001 : Prague, Czech Republic), Filip Karfík, and Aleš Havlíček. Plato's Protagoras: Proceedings of the Third Symposium Platonicum Pragense. Prague: OIKOYMENH, 2003.

Warning: These citations may not always be complete (especially for serials).