Wortmann, C. S., & Ransom, J. (1993). Soil fertility research for maize and bean production systems of the Eastern Africa highlands: Proceedings of a workshop group meeting, Thika, Kenya, 1-4 September, 1992. International Center for Tropical Agriculture.
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Cita Chicago Style (17a ed.)
Wortmann, Charles S., y J.K Ransom. Soil Fertility Research for Maize and Bean Production Systems of the Eastern Africa Highlands: Proceedings of a Workshop Group Meeting, Thika, Kenya, 1-4 September, 1992. International Center for Tropical Agriculture, 1993.
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Cita MLA (9a ed.)
Wortmann, Charles S., y J.K Ransom. Soil Fertility Research for Maize and Bean Production Systems of the Eastern Africa Highlands: Proceedings of a Workshop Group Meeting, Thika, Kenya, 1-4 September, 1992. International Center for Tropical Agriculture, 1993.
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