Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (9a ed.)

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