Guthrie, W. K. C. (1975). A history of greek philosophy: Plato; The man and his dialogues: Earlier period. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Guthrie, W. K. C. A History of Greek Philosophy: Plato; The Man and His Dialogues: Earlier Period. Londres, Inglaterra: Cambridge University Press, 1975.
Lua MLA (9ú heag.)Guthrie, W. K. C. A History of Greek Philosophy: Plato; The Man and His Dialogues: Earlier Period. Cambridge University Press, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.