Harman, G. (1977). The nature of morality: An introduction to ethics. Oxford University Press.
Cita Chicago (17th ed.)Harman, Gilbert. The Nature of Morality: An Introduction to Ethics. New York: Oxford University Press, 1977.
Cita MLA (8th ed.)Harman, Gilbert. The Nature of Morality: An Introduction to Ethics. Oxford University Press, 1977.
Atenció: Aquestes cites poden no estar 100% correctes.