Guthrie, W. (1971). History of Greek philosophy: The earlier Persocratics and the Pythagoreans. Cambridge University Press.
استشهاد بنمط شيكاغوGuthrie, W.K.C. History of Greek Philosophy: The Earlier Persocratics and the Pythagoreans. Cambridge University Press, 1971.
MLA استشهادGuthrie, W.K.C. History of Greek Philosophy: The Earlier Persocratics and the Pythagoreans. Cambridge University Press, 1971.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.