Cita APA (7th ed.)

Murdoch, I. (1993). Metaphysics as a guide to morals. Penguin Books.

Cita Chicago (17th ed.)

Murdoch, Iris. Metaphysics as a Guide to Morals. New York, New Yor: Penguin Books, 1993.

Cita MLA (9th ed.)

Murdoch, Iris. Metaphysics as a Guide to Morals. Penguin Books, 1993.