TY - BOOK AU - Morgan,R.P.C. AU - Davidson,D.A. TI - Soil erosion & conservation SN - 9780582301580 (paperback) AV - S623 M67 PY - 1986/// CY - Harlow PB - Longman KW - Soil erosion KW - Soil conservation N1 - Includes bibliographical references and index ER -