TY - BOOK AU - Harper, David M. AU - Brown, A.G. TI - The sustainable management of tropical catchments SN - 0471969141 AV - TC526.5 .S97 1999 PY - 1999/// CY - New York PB - John Wiley KW - Watershed management KW - Tropics KW - Congresses KW - Soil erosion KW - Land use ER -