Gaya APA

Yingmin, L. (1993). Journal Of Environmental Quality Vol. 22 No. 1 January - March 1993 . Madison, Wisconsin, AS: Cooperatively by The American Society Of Agronomy.

Gaya MLA

Yingmin, Liang. "Journal Of Environmental Quality Vol. 22 No. 1 January - March 1993". Madison, Wisconsin, AS: Cooperatively by The American Society Of Agronomy, 1993. Text.