APA aipamena

(1981). Estimating Numbers Of Terrestrial Birds/editor: C. John Ralph. A Cooper ornithological.

Chicago Style aipamena

Estimating Numbers Of Terrestrial Birds/editor: C. John Ralph. A Cooper ornithological, 1981.

MLA aipamena

Estimating Numbers Of Terrestrial Birds/editor: C. John Ralph. A Cooper ornithological, 1981.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.