Manyong, V., & Degand, J. (1997). Measurement of the sustainability of African smallholder farming systems: Case study of a systems approach.
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Cita Chicago Style (17a ed.)
Manyong, Victor, y J. Degand. Measurement of the Sustainability of African Smallholder Farming Systems: Case Study of a Systems Approach. 1997.
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Cita MLA (9a ed.)
Manyong, Victor, y J. Degand. Measurement of the Sustainability of African Smallholder Farming Systems: Case Study of a Systems Approach. 1997.
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