Bobzien2016
Bobzien, Susanne, "Ancient Logic", The Stanford Encyclopedia of Philosophy (Winter 2016 Edition), Edward N. Zalta (ed.), URL = <https://plato.stanford.edu/archives/win2016/entries/logic-ancient/>
Bobzien, Susanne, "Ancient Logic", The Stanford Encyclopedia of Philosophy (Winter 2016 Edition), Edward N. Zalta (ed.), URL = <https://plato.stanford.edu/archives/win2016/entries/logic-ancient/>