APA (7th ed.) Citation

Copleston, F. (1970). Aquinas. Penguin Books.

Chicago Style (17th ed.) Citation

Copleston, F.C. Aquinas. Penguin Books, 1970.

MLA (8th ed.) Citation

Copleston, F.C. Aquinas. Penguin Books, 1970.

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