Cita APA (7a ed.)

Rachels, J. (1971). Moral problems: A collection of philosophical essays. Harper & Row.

Cita Chicago Style (17a ed.)

Rachels, James. Moral Problems: A Collection of Philosophical Essays. New York: Harper & Row, 1971.

Cita MLA (9a ed.)

Rachels, James. Moral Problems: A Collection of Philosophical Essays. Harper & Row, 1971.