APA (7th ed.) Citation

Okigbo, B. N. (1991). Development of sustainable agricultural production systems in Africa: Roles of International Agricultural Research Centers and national agricultural research systems. IITA.

Chicago Style (17th ed.) Citation

Okigbo, Bede N. Development of Sustainable Agricultural Production Systems in Africa: Roles of International Agricultural Research Centers and National Agricultural Research Systems. Ibadan: IITA, 1991.

MLA (9th ed.) Citation

Okigbo, Bede N. Development of Sustainable Agricultural Production Systems in Africa: Roles of International Agricultural Research Centers and National Agricultural Research Systems. IITA, 1991.