APA (7e ed.) Bronvermelding

Beal, F. E. L. Some Common Birds in Their Relation to Agriculture.

Chicago (17e ed.) Bronvermelding

Beal, F. E. L. Some Common Birds in Their Relation to Agriculture.

MLA (9e ed.) Bronvermelding

Beal, F. E. L. Some Common Birds in Their Relation to Agriculture.

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