Gaya APA

Chang, A. (1992). Journal Of Environmental Quality Vol. 21 No. 4 October - December 1992 . Madison, Wisconsin, AS: Cooperatively by The American Society Of Agronomy.

Gaya MLA

Chang, A.C. "Journal Of Environmental Quality Vol. 21 No. 4 October - December 1992". Madison, Wisconsin, AS: Cooperatively by The American Society Of Agronomy, 1992. Text.