TY - BOOK AU - Cook, Ray L. AU - eliis, Boyd G. TI - Soil management: a world view of conservation and production SN - 047188927x AV - S591 .C69 1987 PY - 1987/// CY - New York PB - John Wiley & Sons KW - soil KW - Agriculture (General) N1 - Includes bibliographical references and index ER -