Gaya APA

Werner, G, S. (1989). Soil Science Society Of America Journal Vol. 53 No. 3 May - June 1989 . Madison, Wisconsin, AS: Soil Science Society of America, Inc..

Gaya MLA

Werner, G., S.. "Soil Science Society Of America Journal Vol. 53 No. 3 May - June 1989". Madison, Wisconsin, AS: Soil Science Society of America, Inc., 1989. Text.