Cita APA (7a ed.)

Guthrie, W. K. C. (1950). The Greek philosophers: From Thales to Aristotle. Methuen & Co.

Cita Chicago Style (17a ed.)

Guthrie, W. K. C. The Greek Philosophers: From Thales to Aristotle. London: Methuen & Co, 1950.

Cita MLA (9a ed.)

Guthrie, W. K. C. The Greek Philosophers: From Thales to Aristotle. Methuen & Co, 1950.