APA (7e ed.) Bronvermelding

Não informado. (1976). Quick bibliography series. National Agricultural Library, Department of Agriculture.

Chicago (17e ed.) Bronvermelding

Não informado. Quick Bibliography Series. Beltsville, Md: National Agricultural Library, Department of Agriculture, 1976.

MLA (8e ed.) Bronvermelding

Não informado. Quick Bibliography Series. National Agricultural Library, Department of Agriculture, 1976.

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