Gaya APA

Tanner, C, B. (1990). Soil Science Society of America Journal Vol. 54 No. 4 July - August 1990 (Vol. 54 No. 4). Madison, Wisconsin, AS: Soil Science Socity of America.

Gaya MLA

Tanner, C., B.. "Soil Science Society of America Journal Vol. 54 No. 4 July - August 1990". Vol. 54 No. 4 Madison, Wisconsin, AS: Soil Science Socity of America, 1990. Text.