Citazione Stile APA (7a Edizione)

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

Citazione stile Chigago Style (17a edizione)

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

Citatione MLA (8a ed.)

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