Tohutoro APA (7th ed.)

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

Tohutoru Kātū Chicago (17th ed.)

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

Tohutoro MLA (9th ed.)

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