00521nam a2200145   450000500170000000700040001700800040002104000090002505000190003411001450005324500930019826000540029130000130034565000170035820250502110616.0000000  aUOEL  aS601b.U5 1984  aAdvisory Committee on the Sahel Board on Science and Technology for International Affairs National Research Council United States of America  aAgroforestry in the West African Sahel:bResource Management for Arid Semiarid Regions /  aWashington,D.C.:bNational Academy Press,cc1984.  aix,86p.:  aAgroforestry