Rachels, J. (1993). The elements of moral philosophy (2nd.ed.). McGraw-Hill.
Chicago Style (17th ed.) CitationRachels, James. The Elements of Moral Philosophy. 2nd.ed. New York: McGraw-Hill, 1993.
MLA引文Rachels, James. The Elements of Moral Philosophy. 2nd.ed. McGraw-Hill, 1993.
警告:這些引文格式不一定是100%准確.