Cahn, S. M., & Markie, P. J. (2009). Ethics: History, theory, and contemporary issues (Fourth edition.). Oxford University Press.
Cita Chicago (17th ed.)Cahn, Steven M., i Peter J. Markie. Ethics: History, Theory, and Contemporary Issues. Fourth edition. New York: Oxford University Press, 2009.
Cita MLA (9th ed.)Cahn, Steven M., i Peter J. Markie. Ethics: History, Theory, and Contemporary Issues. Fourth edition. Oxford University Press, 2009.
Atenció: Aquestes cites poden no estar 100% correctes.