Cita APA (7th ed.)

Kupperman, J. (2007). Ethics and qualities of life. Oxford University Press.

Cita Chicago (17th ed.)

Kupperman, Joel. Ethics and Qualities of Life. New York: Oxford University Press, 2007.

Cita MLA (8th ed.)

Kupperman, Joel. Ethics and Qualities of Life. Oxford University Press, 2007.