Cita APA (7th ed.)

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

Cita Chicago (17th ed.)

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

Cita MLA (9th ed.)

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