APA (7e ed.) Bronvermelding

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

Chicago (17e ed.) Bronvermelding

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

MLA (9e ed.) Bronvermelding

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