Strengthening national agricultural research systems in the humid and sub-humid zones of West and Central Africa: a frame for action - Taylor, Ajibola; Boukambou, Gerard; Dahniya, Mohamed; Ouayogode, V. Bakary; Ayling, I. Robert; Noor, Abdi Mohamood; Toure, Moctar (Washington, D.C.: The World Bank, 1996)