Gaya APA

Green, J, M. (1989). Weed Technology Vol. 3 No. 2 April - June 1989 (Vol. 3 No. 2). Madison, Wisconsin, AS: Weed Sciences Society Of America.

Gaya MLA

Green, Jerome, M.. "Weed Technology Vol. 3 No. 2 April - June 1989". Vol. 3 No. 2 Madison, Wisconsin, AS: Weed Sciences Society Of America, 1989. Text.