Gaya APA

Burnet, M, W. (1991). Weed Socience Vol.39 No.3 July - September 1991 . Madison, Wisconsin, AS: Weed science Society of america.

Gaya MLA

Burnet, Michael, W.M. "Weed Socience Vol.39 No.3 July - September 1991". Madison, Wisconsin, AS: Weed science Society of america, 1991. Text.