APA (7th ed.) Citation

Guthrie, W. K. C. (1950). The Greek philosophers from Thales to Aristotle. Philosophical Library.

Chicago Style (17th ed.) Citation

Guthrie, William K. C. The Greek Philosophers from Thales to Aristotle. New York: Philosophical Library, 1950.

MLA (9th ed.) Citation

Guthrie, William K. C. The Greek Philosophers from Thales to Aristotle. Philosophical Library, 1950.

Warning: These citations may not always be 100% accurate.