Gaya APA

Cassel, D. (1987). Soil Science Society Of America Journal Vol. 51 No. 5 September - October 1987 . Madison, Wisconsin, AS: Soil Science Society of America, Inc..

Gaya MLA

Cassel, D.K. "Soil Science Society Of America Journal Vol. 51 No. 5 September - October 1987". Madison, Wisconsin, AS: Soil Science Society of America, Inc., 1987. Text.