TY  - BOOK
AU  - Okigbo,Bede N.
TI  - Development of sustainable agricultural production systems in Africa: roles of International Agricultural Research Centers and National Agricultural Research Systems
PY  - 1991///
CY  - Ibadan
PB  - International Institute of Tropical Agriculture
KW  - BI-BuBU
KW  - Production agricole. Système. Développement
KW  - Afrique
N1  - Bibliogr
ER  -