Gaya APA

Jr, R, R. (1989). Journal Of Environmental Quality Vol. 18 No. 2 April - June 1989 . Madison, Wisconsin, AS: Cooperatively by The American Society Of Agronomy.

Gaya MLA

Jr, R.B., Reneau,. "Journal Of Environmental Quality Vol. 18 No. 2 April - June 1989". Madison, Wisconsin, AS: Cooperatively by The American Society Of Agronomy, 1989. Text.