Ekanad, O., & Jeje, L. (2014). The Impact of Cocoa Cultivation on Soil Characterstics in Southwestern Nigeria. Obafemi Awolowo University.
Čikaški stil citiranja (17. izdanje)Ekanad, Olusegun, i L.K Jeje. The Impact of Cocoa Cultivation on Soil Characterstics in Southwestern Nigeria. Obafemi Awolowo University, 2014.
MLA način citiranja (9. izdanje)Ekanad, Olusegun, i L.K Jeje. The Impact of Cocoa Cultivation on Soil Characterstics in Southwestern Nigeria. Obafemi Awolowo University, 2014.
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