APA-referens (7:e uppl.)

Gert, B. (2005). Morality: Its nature and justification (Rev. ed.). Oxford University Press.

Chicago-referens (17:e uppl.)

Gert, Bernard. Morality: Its Nature and Justification. Rev. ed. Oxford ; New York: Oxford University Press, 2005.

MLA-referens (9:e uppl.)

Gert, Bernard. Morality: Its Nature and Justification. Rev. ed. Oxford University Press, 2005.