Citazione Stile APA (7a Edizione)

Rachels, J. (2003). The elements of moral philosophy (4th ed.). McGraw - Hill.

Citazione stile Chigago Style (17a edizione)

Rachels, James. The Elements of Moral Philosophy. 4th ed. Boston: McGraw - Hill, 2003.

Citatione MLA (9a ed.)

Rachels, James. The Elements of Moral Philosophy. 4th ed. McGraw - Hill, 2003.