APA (7e ed.) Bronvermelding

Não informado. (2001). Birds and nature magazine. Nature Study Publishing.

Chicago (17e ed.) Bronvermelding

Não informado. Birds and Nature Magazine. Chicago, Ill: Nature Study Publishing, 2001.

MLA (8e ed.) Bronvermelding

Não informado. Birds and Nature Magazine. Nature Study Publishing, 2001.

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