APA (7th ed.) Citation

Copleston, F. C. (1959). Acquinas. Penguin Books.

Chicago Style (17th ed.) Citation

Copleston, F. C. Acquinas. Middlesex: Penguin Books, 1959.

MLA (9th ed.) Citation

Copleston, F. C. Acquinas. Penguin Books, 1959.

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