Gensler, H. J., Spurgin, E. W., & Swindal, J. (2004). Ethics: Contemporary readings. Routledge.
Chicago Style aipamenaGensler, Harry J., Earl W. Spurgin, and James Swindal. Ethics: Contemporary Readings. New York: Routledge, 2004.
MLA aipamenaGensler, Harry J., et al. Ethics: Contemporary Readings. Routledge, 2004.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.