Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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