APA (7th ed.) Zitazioa

Zimmerman, M. J. (1996). The concept of moral obligation. Univ. Pr.

Chicago Style (17th ed.) Zitazioa

Zimmerman, Michael J. The Concept of Moral Obligation. Cambridge: Univ. Pr, 1996.

MLA (9th ed.) Zitazioa

Zimmerman, Michael J. The Concept of Moral Obligation. Univ. Pr, 1996.