APA (7th ed.) Zitazioa

Norman, R. (1983). The moral philosophers: An introduction to ethics. Clarendon.

Chicago Style (17th ed.) Zitazioa

Norman, Richard. The Moral Philosophers: An Introduction to Ethics. oxford: Clarendon, 1983.

MLA (9th ed.) Zitazioa

Norman, Richard. The Moral Philosophers: An Introduction to Ethics. Clarendon, 1983.