APA-referens (7:e uppl.)

Huxley, T. H., & Ruse, T. (2009). Evolution and ethics: Thomas Henry Huxley. Ed. and with a new introd. by Michael Ruse. Princeton Univ. Press.

Chicago-referens (17:e uppl.)

Huxley, Thomas Henry, och Thomas Ruse. Evolution and Ethics: Thomas Henry Huxley. Ed. and with a New Introd. by Michael Ruse. Princeton, NJ [u.a.]: Princeton Univ. Press, 2009.

MLA-referens (8:e uppl.)

Huxley, Thomas Henry, och Thomas Ruse. Evolution and Ethics: Thomas Henry Huxley. Ed. and with a New Introd. by Michael Ruse. Princeton Univ. Press, 2009.