APA (7th ed.) Citation

Guthrie, W. K. C. (1997). The greek philosophers: From Thales to Aristotle. Routledge.

Chicago Style (17th ed.) Citation

Guthrie, W. K. C. The Greek Philosophers: From Thales to Aristotle. London: Routledge, 1997.

MLA (8th ed.) Citation

Guthrie, W. K. C. The Greek Philosophers: From Thales to Aristotle. Routledge, 1997.

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