APA (7th ed.) Zitazioa

Wood, R. (1962). Principles and problems of ethics (1a. ed.). Herder.

Chicago Style (17th ed.) Zitazioa

Wood, Robert. Principles and Problems of Ethics. 1a. ed. Saint Louis: Herder, 1962.

MLA (9th ed.) Zitazioa

Wood, Robert. Principles and Problems of Ethics. 1a. ed. Herder, 1962.