TY - BOOK AU - Morgan,R.P.C. AU - Davidson,Donald A. TI - Soil erosion and conservation SN - 0470206713 (Wiley : pbk.) AV - S623 .M68 1986 U1 - 631.4/5�19 PY - 1986/// CY - Harlow, Essex PB - Longman Scientific & Technical KW - Soil erosion KW - Soil conservation N1 - Cover title: Soil erosion & conservation; Rev. and enl. ed. of: Soil erosion. 1979 ER -