Soil management :
a world view of conservation and production /
Ray L. Cook, Boyd G. Ellis.

APA Citation

Cook, R. Lewis., Ellis, B. G. (1987). Soil management: a world view of conservation and production. New York: Wiley.

MLA Citation

Cook, Ray Lewis, and Boyd G Ellis. Soil Management: a World View of Conservation And Production. New York: Wiley, 1987.

Warning: These citations may not always be complete (especially for serials).