Agricultural technology in sub-saharan africa : A woekshop on research issues / edited by Suzanne Gnaegy & Jock R. Andeson - Washington : The World Bank , 1991 - 142p : ill. ; 30 cm. - World Bank Discussion paper No. 126 . ISBN: 0821318667 Subjects--Topical Terms: Agricultural --africa technology Gov. Doc. Class. No.: UN WB DP-126