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21Book bibliotecaCIMMYT
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22Texto bibliotecaFAO IT
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27Texto bibliotecaFAO IT
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28Texto bibliotecaFAO IT
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29Conference Paper bibliotecaCGIAR
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30by Gupta, R.V., FAO, Bangkok (Thailand). Regional Office for Asia and the Pacific eng
Published 1985Texto bibliotecaFAO IT -
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35Article bibliotecaCIMMYT
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40by Das, Ashis, Das Gupta, R.K., Friedman, Jed, Pradhan, Madan M., Mohapatra, Charu C.
Published 2013-01-29Journal Article bibliotecaBanco Mundial