APA (7e ed.) Bronvermelding

(1897). Yearbook of the United States Department of Agriculture: научное издание.

Chicago (17e ed.) Bronvermelding

Yearbook of the United States Department of Agriculture: научное издание. 1897.

MLA (9e ed.) Bronvermelding

Yearbook of the United States Department of Agriculture: научное издание. 1897.

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