Soil, water, and crop production / [edited by] D. Wynne Thorne, Marlowe D. Thorne. Thorne, David Wynne, 1908- Thorne, Marlowe D. Agricultural ecology. Agriculture. Cropping systems. Agricultural geography. S589.7 .S64 631.5 THS Includes bibliographies and index. Westport, Connecticut : AVI Pub. Co., c1979. c1979. 1979 Text ix, 252 p. : eng