Search Results       Your search for [subject]Root crops -- Africa -- Congresses returned 1 record.           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. Ottawa, Ont., Canada: International Development Research Centre, 1987. Subject: Food supply -- Africa -- Congresses; Root crops -- Africa -- Congresses; Root crops -- Tropics -- Congresses; Tropical crops -- Congresses; Tropical crops -- Africa -- Congresses.          Add to Book Cart Relevance: 29.75%