Institut de recherches agronomiques et forestièresTumanteh, A.Agueguia, A.2007-11-121985-04-012007-11-121980http://hdl.handle.net/10625/7246Text1 digital file (59 p. : ill.)application/pdfenROOT CROPSAGRICULTURAL RESEARCHRESEARCH CENTRESPLANT BREEDINGCAMEROONAGRONOMYPLANT DISEASESCASSAVAYAMSSWEET POTATOESCULTIVATION PRACTICESRESEARCH RESULTSANNUAL REPORTSCameroon National Root Crops Improvement Programme (CNRCIP): annual technical (analytic) report, 1980Working Paper