Cita APA (7th ed.)

Porter, B. F. (1990). The Good Life: Alternatives in Ethics (2nd ed.). Macmillan.

Cita Chicago (17th ed.)

Porter, Burton F. The Good Life: Alternatives in Ethics. 2nd ed. New York: Macmillan, 1990.

Cita MLA (9th ed.)

Porter, Burton F. The Good Life: Alternatives in Ethics. 2nd ed. Macmillan, 1990.