Development of sustainable agricultural production systems in Africa : roles of international agricultural research centers and national agricultural research systems
Okigbo, Bede N.
Development of sustainable agricultural production systems in Africa : roles of international agricultural research centers and national agricultural research systems - Ibadan, Nigeria : International Institute of Tropical Agriculture, 1991 - 65 p. : ilus
3121
Agricultura de subsistencia.
Agricultura--Africa--Africa.
Agricultura--Investigacion--Africa.
Sistemas de producción.
Development of sustainable agricultural production systems in Africa : roles of international agricultural research centers and national agricultural research systems - Ibadan, Nigeria : International Institute of Tropical Agriculture, 1991 - 65 p. : ilus
3121
Agricultura de subsistencia.
Agricultura--Africa--Africa.
Agricultura--Investigacion--Africa.
Sistemas de producción.