Cita APA (7a ed.)

Kant, I., Wolff, R. P., & Beck, L. W. (1985). Foundations of the metaphysics of morals. Macmillan.

Cita Chicago Style (17a ed.)

Kant, Immanuel, Robert Paul Wolff, y Lewis White Beck. Foundations of the Metaphysics of Morals. New York: Macmillan, 1985.

Cita MLA (9a ed.)

Kant, Immanuel, et al. Foundations of the Metaphysics of Morals. Macmillan, 1985.