@book{Algra:1999, Date-Added = {2019-03-22 15:00:14 +0000}, Date-Modified = {2019-03-22 15:01:37 +0000}, Editor = {Keimpe Algra and Jonathan Barnes and Jaap Mansfeld and Malcolm Schofield}, Publisher = {Cambridge University Press}, Title = {The {Cambridge} History of {Hellenistic} Philosophy}, Year = {1999}}