TY - BOOK AU - Morgan, R. P. C. AU - Davidson, D. A. (ed.) TI - Soil erosion and conservation SN - 0582301580 U1 - 631.45 PY - 1986/// CY - London PB - Longman Scientific and Technical KW - Soil erosion KW - Soil conservation N1 - PB; Includes bibliography and index ER -