Tropical root crops : root crops and the African food crisis : proceedings of the 3rd trienniel Symposium of the International Society for Tropical Roots Crops - Africa Branch held in Owerri, Nigeria, 17-23 August 1986 - Trienniel Symposium of the International Society for Tropical Root crops 1986 : Nigeria); Terry, E. R.; Akoroda, M. O.; Arene, O. B. (Ottawa : IDRC, 1987)
Keywords: Root -- crops -- Tropics -- Congresses