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  1. 41
    In-service training for soil and water conservation : report of the Workshop in Serdang, Malaysia, 11-15 December, 1989.

    In-service training for soil and water conservation : report of the Workshop in Serdang, Malaysia, 11-15 December, 1989.

    出版 1989
    Conference Proceeding 圖書

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  2. 42
    Tillage systems for soil and water conservation /

    Tillage systems for soil and water conservation / 由 Unger, Paul W.

    出版 1984
    圖書

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  3. 43
    Construction and design of prestressed concrete segmental bridges

    Construction and design of prestressed concrete segmental bridges 由 Podolny, Walter

    出版 1982
    圖書

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  4. 44
    Resource conservation : social and economic dimensions of recycling /

    Resource conservation : social and economic dimensions of recycling /

    出版 1977
    圖書

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  5. 45
    Environmental impact of water resources projects /

    Environmental impact of water resources projects / 由 Canter, Larry W.

    出版 1985
    圖書

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  6. 46
    Integrated design of water treatment facilities /

    Integrated design of water treatment facilities / 由 Kawamura, Susumu

    出版 1991
    圖書

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  7. 47
    Rain catchment and water supply in rural Africa a manual

    Rain catchment and water supply in rural Africa a manual 由 Nissen-Petersen, Erik

    出版 1982
    圖書

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  8. 48
    Design of networks for monitoring water quality

    Design of networks for monitoring water quality

    出版 1983
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  9. 49
    Pressure pipeline design for water and wastewater /

    Pressure pipeline design for water and wastewater /

    出版 1992
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  10. 50
    Construction : principles, materials, & methods /

    Construction : principles, materials, & methods / 由 Olin, Harold Bennett

    出版 1975
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  11. 51
    Jobs for tomorrow the potential for substituting manpower for energy

    Jobs for tomorrow the potential for substituting manpower for energy 由 Stahel, Walter R.

    出版 1981
    圖書

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  12. 52
    Screenings and grit in sewage : removal,treatment and disposal, phase 3; Storm water overflows and pumping stations /

    Screenings and grit in sewage : removal,treatment and disposal, phase 3; Storm water overflows and pumping stations /

    出版 1988
    圖書

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  13. 53
    Concrete water towers, bunkers, silos, & other elevated structures.

    Concrete water towers, bunkers, silos, & other elevated structures. 由 Gray, William Samuel

    出版 1973
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  14. 54
    Soil and water conservation in semi-arid areas /

    Soil and water conservation in semi-arid areas / 由 Hudson, Norman W.

    出版 1987
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  15. 55
    Irrigation scheduling for water & energy conservation in the 80's the proceedings of the Irrigation Scheduling Conference, December 14-15, 1981, the Palmer House, Chicago, Illinois

    Irrigation scheduling for water & energy conservation in the 80's the proceedings of the Irrigation Scheduling Conference, December 14-15, 1981, the Palmer House, Chicago, Illinois

    出版 1981
    圖書

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  16. 56
    Overshot waterwheel a design and construction manual

    Overshot waterwheel a design and construction manual

    出版 1980
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  17. 57
    Soil and water conservation for productivity and environmental protection

    Soil and water conservation for productivity and environmental protection 由 Troeh, Frederick R.

    出版 1980
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  18. 58
    Soil and water conservation research, 1956-71

    Soil and water conservation research, 1956-71

    出版 1975
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  19. 59
    Farmers' practices and soil and water conservation programs /

    Farmers' practices and soil and water conservation programs /

    出版 1991
    Conference Proceeding 圖書

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  20. 60
    Land use and water resources in temperate and tropical climates

    Land use and water resources in temperate and tropical climates 由 Pereira, H. C. (Herbert Charles), 1913-

    出版 1973
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