TY - BOOK ED - Bridges E. Michael. TI - Response to land degredation / SN - 1578081521 (pbk) U1 - 333.76 PY - 2001/// CY - Enfield : PB - Science Publishers, KW - Soil degradation KW - Soil conservation KW - Land degradation KW - Land use N1 - Includes bibliographical references and index ER -