APA (7e ed.) Bronvermelding

Não informado. (1926). Yearbook of agriculture. U.S. Department of Agriculture.

Chicago (17e ed.) Bronvermelding

Não informado. Yearbook of Agriculture. Washington: U.S. Department of Agriculture, 1926.

MLA (8e ed.) Bronvermelding

Não informado. Yearbook of Agriculture. U.S. Department of Agriculture, 1926.

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