एपीए उद्धरण

Guthrie, W. (1971). History of Greek philosophy: The earlier Persocratics and the Pythagoreans. Cambridge University Press.

शिकागो स्टाइल उद्धरण

Guthrie, W.K.C. History of Greek Philosophy: The Earlier Persocratics and the Pythagoreans. Cambridge University Press, 1971.

एमएलए उद्धरण

Guthrie, W.K.C. History of Greek Philosophy: The Earlier Persocratics and the Pythagoreans. Cambridge University Press, 1971.