Cita APA (7a ed.)

Gert, B. (1989). Morality: A new justification of the moral rules. Oxford University.

Cita Chicago Style (17a ed.)

Gert, Bernard. Morality: A New Justification of the Moral Rules. New York: Oxford University, 1989.

Cita MLA (9a ed.)

Gert, Bernard. Morality: A New Justification of the Moral Rules. Oxford University, 1989.