APA (7e ed.) Bronvermelding

Não informado. (1968). Weed Science. Weed Science Society of America.

Chicago (17e ed.) Bronvermelding

Não informado. Weed Science. Champaign, Ill: Weed Science Society of America, 1968.

MLA (8e ed.) Bronvermelding

Não informado. Weed Science. Weed Science Society of America, 1968.

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