Style de citation APA (7e éd.)

Guthrie, W. K. C., & Guthrie, W. K. C. (1977). The earlier Presocratics and the Phythagoreans. Cambridge Univ. Press.

Style de citation Chicago (17e éd.)

Guthrie, William Keith Chambers, et William Keith Chambers Guthrie. The Earlier Presocratics and the Phythagoreans. Cambridge [u.a.]: Cambridge Univ. Press, 1977.

Style de citation MLA (8e éd.)

Guthrie, William Keith Chambers, et William Keith Chambers Guthrie. The Earlier Presocratics and the Phythagoreans. Cambridge Univ. Press, 1977.