APA (7th ed.) Citation

Leff, G. (1958). Medieval thought: St. Augustine to Ockham. Penguin Books.

Chicago Style (17th ed.) Citation

Leff, Gordon. Medieval Thought: St. Augustine to Ockham. Harmondsworth: Penguin Books, 1958.

MLA (8th ed.) Citation

Leff, Gordon. Medieval Thought: St. Augustine to Ockham. Penguin Books, 1958.

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