Gaya APA

Sivakumaran, K. (1993). Weed Science Vol. 41 No. 2 April - June 1993 (Vol. 41 No. 2). Madison, Wisconsin, AS: Weed Sciences Society Of America.

Gaya MLA

Sivakumaran, K.. "Weed Science Vol. 41 No. 2 April - June 1993". Vol. 41 No. 2 Madison, Wisconsin, AS: Weed Sciences Society Of America, 1993. Text.