Okigbo, B. (1974). The IITA farming systems program. International Center for Research in Semi-Arid Tropics.
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Chicago Style (17th ed.) Citation
Okigbo, B. The IITA Farming Systems Program. International Center for Research in Semi-Arid Tropics, 1974.
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MLA (9th ed.) Citation
Okigbo, B. The IITA Farming Systems Program. International Center for Research in Semi-Arid Tropics, 1974.
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Warning: These citations may not always be 100% accurate.