Cita APA

Rachels, S., & Rachels, J. (2003). The elements of moral philosophy. New York: McGraw Hill Higher Education.

Chicago Style Citation

Rachels, Stuart, i James Rachels. The Elements of Moral Philosophy. New York: McGraw Hill Higher Education, 2003.

Cita MLA

Rachels, Stuart, i James Rachels. The Elements of Moral Philosophy. New York: McGraw Hill Higher Education, 2003.

Atenció: Aquestes cites poden no estar 100% correctes.