APA (7e ed.) Bronvermelding

Não informado. (1937). Foreign agriculture. U.S. Department of Agriculture, Foreign Agricultural Service.

Chicago (17e ed.) Bronvermelding

Não informado. Foreign Agriculture. Washington: U.S. Department of Agriculture, Foreign Agricultural Service, 1937.

MLA (8e ed.) Bronvermelding

Não informado. Foreign Agriculture. U.S. Department of Agriculture, Foreign Agricultural Service, 1937.

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