APA (7th ed.) Zitazioa
Fa, J. E., Funk, S. M., & O'Connell, D. (2011). Zoo conservation biology. Cambridge University Press.
Chicago Style (17th ed.) Zitazioa
Fa, John E., Stephan M. Funk, eta Donnamarie O'Connell. Zoo Conservation Biology. Cambridge ; New York: Cambridge University Press, 2011.
MLA (9th ed.) Zitazioa
Fa, John E., et al. Zoo Conservation Biology. Cambridge University Press, 2011.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.