APA aipamena

Foster, P. B. e. M. (2008). Orca. Oxford University Press.

Chicago Style aipamena

Foster, Phillip Burrows e Mark. Orca. Oxford University Press, 2008.

MLA aipamena

Foster, Phillip Burrows e Mark. Orca. Oxford University Press, 2008.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.