Okigbo, B. (1991). Development of sustainable agricultural production systems in Africa: Roles of international agricultural research centers and national agricultural research systems.
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Cita Chicago Style (17a ed.)
Okigbo, B. Development of Sustainable Agricultural Production Systems in Africa: Roles of International Agricultural Research Centers and National Agricultural Research Systems. 1991.
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Cita MLA (9a ed.)
Okigbo, B. Development of Sustainable Agricultural Production Systems in Africa: Roles of International Agricultural Research Centers and National Agricultural Research Systems. 1991.
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