APA aipamena

O-Connor, R. J. The growth and development of birds. John Wiley and Sons.

Chicago Style aipamena

O-Connor, Raymond J. The Growth and Development of Birds. John Wiley and Sons.

MLA aipamena

O-Connor, Raymond J. The Growth and Development of Birds. John Wiley and Sons.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.