Mahapatra, I.C.Pérez, A.T.Buddenhagen, I.W.2018-11-142018-11-14https://hdl.handle.net/10568/98132Progress and problems in attempting changes in rice varieties and rice technology at the farm level in two countries of West Africa: paper presented at the WARDA Varietal Improvement Seminar, Bouake, Ivory Coast, September 1317, 1976