APA (7th ed.) Zitazioa

Nelson, W. N. (1991). Morality, what's in it for me?: A histori-. Westview Pr.

Chicago Style (17th ed.) Zitazioa

Nelson, William N. Morality, What's in It for Me?: A Histori-. Boulder, Colo: Westview Pr, 1991.

MLA (9th ed.) Zitazioa

Nelson, William N. Morality, What's in It for Me?: A Histori-. Westview Pr, 1991.