APA (7e ed.) Bronvermelding

Não informado. (1978). Studies in avian biology. Cooper Ornithological Society.

Chicago (17e ed.) Bronvermelding

Não informado. Studies in Avian Biology. Lawrence, Kan: Cooper Ornithological Society, 1978.

MLA (8e ed.) Bronvermelding

Não informado. Studies in Avian Biology. Cooper Ornithological Society, 1978.

Let op: Deze citaties zijn niet altijd 100% accuraat.