APA-viite (7. p.)

Kant, I., & Gregor, M. J. (1998). Groundwork of the metaphysics of morals. Cambridge Univ..

Chicago-viite (17. p.)

Kant, Immanuel, ja Mary J. Gregor. Groundwork of the Metaphysics of Morals. London: Cambridge Univ., 1998.

MLA-viite (9. p.)

Kant, Immanuel, ja Mary J. Gregor. Groundwork of the Metaphysics of Morals. Cambridge Univ., 1998.