Cita APA (7a ed.)

Clark, S. R. (1997). Animals and their moral standing. Routledge.

Cita Chicago Style (17a ed.)

Clark, Stephen R.L. Animals and Their Moral Standing. London [etc.]: Routledge, 1997.

Cita MLA (9a ed.)

Clark, Stephen R.L. Animals and Their Moral Standing. Routledge, 1997.