Ehui, S. K., & Jabbar, M. (1995). Measuring the sustainability of crop-livestock systems in sub-Saharan Africa: Methods and data requirements. International Livestock Centre for Africa.
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Cita Chicago Style (17a ed.)
Ehui, Simeon K., y M.A Jabbar. Measuring the Sustainability of Crop-livestock Systems in Sub-Saharan Africa: Methods and Data Requirements. International Livestock Centre for Africa, 1995.
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Cita MLA (9a ed.)
Ehui, Simeon K., y M.A Jabbar. Measuring the Sustainability of Crop-livestock Systems in Sub-Saharan Africa: Methods and Data Requirements. International Livestock Centre for Africa, 1995.
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