APA (7e ed.) Bronvermelding

Não informado. (1937). Tobacco situation. U.S. Department of Agriculture, Agricultural Marketing Service.

Chicago (17e ed.) Bronvermelding

Não informado. Tobacco Situation. Washington: U.S. Department of Agriculture, Agricultural Marketing Service, 1937.

MLA (8e ed.) Bronvermelding

Não informado. Tobacco Situation. U.S. Department of Agriculture, Agricultural Marketing Service, 1937.

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