Farmer evaluations of technology: methodology for open-ended evaluation

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Quirós Torres, Carlos Arturo; Gracia, Teresa; Ashby, Jacqueline Anne. 1991. Farmer evaluations of technology : Methodology for open-ended evaluation. Centro Internacional de Agricultura Tropical (CIAT), IPRA Project, Cali, CO. 91 p. (CIAT Publication no. 192)

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