Bulletin of the British Ornithologists' Club. Cambridge University Press.
Chicago Style (17. basım) AtıfBulletin of the British Ornithologists' Club. Cambridge University Press.
MLA (9th ed.) AtıfBulletin of the British Ornithologists' Club. Cambridge University Press.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..