Murdoch, I. (1993). Metaphysics as a guide to morals (1st American ed.). Allen Lane, Penguin Press.
Citazione stile Chigago Style (17a edizione)Murdoch, Iris. Metaphysics as a Guide to Morals. 1st American ed. New York, N.Y., U.S.A: Allen Lane, Penguin Press, 1993.
Citatione MLA (9a ed.)Murdoch, Iris. Metaphysics as a Guide to Morals. 1st American ed. Allen Lane, Penguin Press, 1993.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.