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, Nigeria
PB  - International Institute of Tropical Agriculture
KW  - Agricultura de subsistencia
KW  - Agricultura
KW  - Africa
KW  - Investigacion
KW  - Sistemas de producción
ER  -