APA aipamena

Gruen, L. (2011). Ethics and animals: An introduction. Cambridge University Press.

Chicago Style aipamena

Gruen, Lori. Ethics and Animals: An Introduction. Cambridge, UK ; New York: Cambridge University Press, 2011.

MLA aipamena

Gruen, Lori. Ethics and Animals: An Introduction. Cambridge University Press, 2011.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.