Gaya APA

Alexander, M. (1986). Soil Science Society Of America Vol. 50 No. 4 July - August 1986 . Madison, Wisconsin, AS: Soil Science Society of America, Inc..

Gaya MLA

Alexander, Martin. "Soil Science Society Of America Vol. 50 No. 4 July - August 1986". Madison, Wisconsin, AS: Soil Science Society of America, Inc., 1986. Text.