%A International Society for Tropical Root Crops. Africa Branch. Symposium %A Terry, E. R. %A Akoroda, M. O. %A Arene, O. B. %T Tropical root crops : root crops and the African food crisis : proceedings of the Third Triennial Symposium of the International Society for Tropical Root Crops--Africa Branch held in Owerri, Nigeria, 17-23 August 1986 %I International Development Research Centre %D 1987 %S IDRC %V 258e %U https://ci.nii.ac.jp/ncid/BA06661687