00817nam a2200205Ia 4500 CTU_123165 210402s9999 xx 000 0 und d 338.160967 W919 Achieving greater impact from research investments in Africa : proceedings of the Workshop Developing African Agriculture--Achieving Greater Impact from Research Investments, held in Addis Ababa, September 26-30, 1995 Steven A. Breth, editor Mexico City Sasakawa Africa Association 1996 Agriculture,Agriculture Research,Congresses,Technology transfer,Congresses Africa, Sub-Saharan,Africa, Sub-Saharan Hiếu, Huỳnh Mai Trung tâm Học liệu Trường Đại học Cần Thơ