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  1. 1
    Agricultural soil maps : status, July 1957. A revision of Bulletin 22 (1948) /
    Published 1957
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    UNCO AR


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  2. 2
    Quaternary geology and climate /
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    UNCO AR


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  3. 3
    Methane generation from human, animal, and agricultural wastes
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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  4. 4
    Producer gas: another fuel for motor transport
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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  5. 5
    Alcohol fuels options for developing countries
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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  6. 6
    Firewood crops shrub and tree species for energy production
    Published 1980
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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  7. 7
    Postharvest food losses in developing countries
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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  8. 8
    Understanding climatic change : a program for action /
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    UNCO AR


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  9. 9
    Making aquatic weeds useful : Some perspectives for developing countries
    by National Academy of Sciences
    Published 1976
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    UNAM


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  10. 10
    The winged bean a high-protein crop for the tropics
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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  11. 11
    Pest control an assessment of present and alternative technologies
    Published 1975
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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  12. 12
    Rock-mechanics : research /
    “...Washington : National Academy of Sciences, ...”
    Texto biblioteca
    UNCO AR


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  13. 13
    Tropical legumes : Resources for the future
    “...Washington : National Academy of Sciences. ...”
    software, multimedia biblioteca
    UNAM


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  14. 14
    Tropical legumes: resources for the future
    Published 1979
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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  15. 15
    How safe is safe? The design of policy on drugs and food additives
    Published 1974
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    COLPOS


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  16. 16
    Tropical legumes : resources for the future.
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    COLPOS


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  17. 17
    Postharvest food losses in developing countries.
    by National Academy of Sciences
    Published 1978
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    COLPOS


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  18. 18
    Leucaena : promising forage and tree crop for the tropics.
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    COLPOS


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  19. 19
    Soils of the humid tropics.
    “...Washington : National Academy of Sciences,...”
    Texto biblioteca
    COLPOS


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  20. 20
    Nutrient requirements of sheep
    Published 1985
    “...Washington National Academy of Sciences...”
    Texto biblioteca
    ECOSUR


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