APA引文

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

Trích dẫn kiểu Chicago

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

MLA引文

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

警告：这些引文格式不一定是100％准确.