Gaya APA

Gensler, H, J. (1998). Ethics: A contemporary introduction. Routledge Contemporary Introductions to Philosophy . London & New York: London & New York Routledge.

Gaya MLA

Gensler, Harry, J.. "Ethics: A contemporary introduction. Routledge Contemporary Introductions to Philosophy". London & New York: London & New York Routledge, 1998. Buku.