Cita APA (7a ed.)

Alexander, R. M. (1996). Optima for Animals: Revised Edition (Revised ed.). Princeton University Press.

Cita Chicago Style (17a ed.)

Alexander, R. McNeill. Optima for Animals: Revised Edition. Revised ed. Princeton, NJ: Princeton University Press, 1996.

Cita MLA (8a ed.)

Alexander, R. McNeill. Optima for Animals: Revised Edition. Revised ed. Princeton University Press, 1996.