Cita APA

Rachels, J. (1999). The elements of moral philosophy (3rd ed.). McGraw-Hill College.

Citación estilo Chicago

Rachels, James. The Elements of Moral Philosophy. 3rd ed. Boston: McGraw-Hill College, 1999.

Cita MLA

Rachels, James. The Elements of Moral Philosophy. 3rd ed. McGraw-Hill College, 1999.