APA aipamena

Yalden, D. W. The history of British birds. Oxford University Press.

Chicago Style aipamena

Yalden, D. W. The History of British Birds. Oxford University Press.

MLA aipamena

Yalden, D. W. The History of British Birds. Oxford University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.