APA (7e ed.) Bronvermelding

Não informado. (1940). Agricultural Science and Genetics Newsletter. U.S. Department of Agriculture.

Chicago (17e ed.) Bronvermelding

Não informado. Agricultural Science and Genetics Newsletter. Cold Spring Harbor, NY: U.S. Department of Agriculture, 1940.

MLA (8e ed.) Bronvermelding

Não informado. Agricultural Science and Genetics Newsletter. U.S. Department of Agriculture, 1940.

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