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3Digital revistaSCIELO
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4Digital revistaSCIELO
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5
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6Manual bibliotecaCGIAR
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7Manual bibliotecaCGIAR
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8Digital revistaSCIELO
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9Digital revistaUDLA
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10by Calatayud, Paul-André, Baron, C.H., Velásquez, H., Arroyave, José A., Lamaze, T
Published 2002-01-01Journal Article bibliotecaCGIAR -
11by C. A. Velasquez, H. Dell'Orto Trivelli;Rural Infrastructure and Agro-Industries Division
Published 1983Book (stand-alone) bibliotecaFAO IT -
12Digital revistaSCIELO
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