TY - BOOK AU - Baumer, Michel. TI - The potential role of agroforestry in combating desertification and environmental degradation : with special reference to Africa : with special reference to Africa SN - 9290810394 AV - S 619 .A37 B38 1990 9723 PY - 1990/// CY - Netherlands PB - Technical centre for agricultural and rural cooperation KW - Degradation of environment N1 - Includes bibliographical references and index ER -