TY - BOOK AU - Grainger, Alan. TI - The threatening desert: controlling desertification SN - 1853830410 (pbk.) U1 - 333.73/6 22 PY - 1990/// CY - London PB - Earthscan in association with United Nations Environment Programme, Nairobi KW - Desertification KW - Control N1 - Includes bibliographical references and index ER -