00541nam a2200133   450000500170000000700040001700800040002105000200002511000880004524501540013326000860028730000170037365000170039020150428094325.0000000  aS494.5. A45bS4  aTechnical  Centre for Agricultural and Rural Cooperation,ACP-CEE Convention of Lome  aThe Efficiency of Trees in African Agrarian Production and Rural Landscapes:bProceedings of the Seminar organized in Kigali from 11 to 16 June 1988   aWageningen,The Netherlands.:bTechnical Centre and Rural Cooperation(CTA),cc1988  a395p.:bIll.  aAgroforestry