APA引文

Rachels, J. (2003). The elements of moral philosophy (4th ed.). McGraw - Hill.

芝加哥风格引文

Rachels, James. The Elements of Moral Philosophy. 4th ed. Boston: McGraw - Hill, 2003.

MLA引文

Rachels, James. The Elements of Moral Philosophy. 4th ed. McGraw - Hill, 2003.