APA-viite (7. p.)

Harman, G. (1977). The nature of morality: An introduction to ethics. O.U.P..

Chicago-viite (17. p.)

Harman, Gilbert. The Nature of Morality: An Introduction to Ethics. New York: O.U.P., 1977.

MLA-viite (9. p.)

Harman, Gilbert. The Nature of Morality: An Introduction to Ethics. O.U.P., 1977.