Gaya APA

Barry, D. (1988). Soil Science Society Of America Journal Vol. 52 No. 1 January - February 1988 . Madison, Wisconsin, AS: Soil Science Society of America, Inc..

Gaya MLA

Barry, D.A.. "Soil Science Society Of America Journal Vol. 52 No. 1 January - February 1988". Madison, Wisconsin, AS: Soil Science Society of America, Inc., 1988. Text.