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  1. 621
    New and renewable energies practical examples : micro-hydropower, solar cells, cooking stoves, solar water heaters, biogaz

    New and renewable energies practical examples : micro-hydropower, solar cells, cooking stoves, solar water heaters, biogaz by Meier, Ueli

    Published 1981
    Subjects:
    Book

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  2. 622
    List of Wildlife Division publications, March 1981.

    List of Wildlife Division publications, March 1981.

    Published 1981
    Subjects:
    Book

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  3. 623
    Solar energy in small-scale milk collection and processing /

    Solar energy in small-scale milk collection and processing / by Tuszy nski, Wojciech

    Published 1983
    Subjects: “…Dairy plants Energy conservation.…”
    Book

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  4. 624
    Report of the High Level Conference to Adopt a Convention for the Protection of the Natural Resources and environment ... Noumea, New Caledonia, 17-25 November, 1986 /

    Report of the High Level Conference to Adopt a Convention for the Protection of the Natural Resources and environment ... Noumea, New Caledonia, 17-25 November, 1986 /

    Published 1987
    Subjects: “…Conservation of natural resources Oceania International cooperation.…”
    Conference Proceeding Book

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  5. 625
    The old walled city of San'a /

    The old walled city of San'a / by Lewcock, Ronald B.

    Published 1986
    Subjects: “…Historic sites Yemen San'a Conservation and restoration.…”
    Book

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  6. 626
    Handbook of natural resource and energy economics /

    Handbook of natural resource and energy economics /

    Published 1985
    Subjects:
    Book

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  7. 627
    Convention for the protection of the natural resources and environment of the South Pacific Region and related protocols /

    Convention for the protection of the natural resources and environment of the South Pacific Region and related protocols /

    Published 1987
    Subjects: “…Conservation of natural resources Oceania International cooperation.…”
    Book

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  8. 628
    Approaches to environmental planning in Papua New Guinea.

    Approaches to environmental planning in Papua New Guinea.

    Published 1980
    Subjects:
    Book

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  9. 629
    Tropical forests : botanical dynamics, speciation and diversity /

    Tropical forests : botanical dynamics, speciation and diversity /

    Published 1989
    Subjects:
    Book

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  10. 630
    Hydrometric yearbook 1988.

    Hydrometric yearbook 1988.

    Published 1990
    Subjects: “…Department of Environment & Conservation.…”
    Book

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  11. 631
    Hydrometric yearbook 1987.

    Hydrometric yearbook 1987.

    Published 1990
    Subjects: “…Department of Environment & Conservation.…”
    Book

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  12. 632
    Resource survey of Ngerukewid Island Wildlife Preserve Republic of Palau : a report of the Government of Palau, the South Pacific Regional Environment Programme, World Wildlife Fund, and the International Union for the Conservation of Nature and Natural Resources /

    Resource survey of Ngerukewid Island Wildlife Preserve Republic of Palau : a report of the Government of Palau, the South Pacific Regional Environment Programme, World Wildlife Fund, and the International Union for the Conservation of Nature and Natural Resources /

    Published 1989
    Subjects:
    Unknown

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  13. 633
    Guide to improving efficiency of combustion systems /

    Guide to improving efficiency of combustion systems /

    Published 1988
    Subjects:
    Unknown

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  14. 634
    Saving wildlife /

    Saving wildlife / by Wignell, Edna

    Published 1990
    Subjects: “…Wildlife conservation Juvenile literature.…”
    Book

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  15. 635
    Energy, power sources and electricity /

    Energy, power sources and electricity / by Neal, Philip

    Published 1989
    Subjects: “…Energy conservation Juvenile literature.…”
    Book

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  16. 636
    Land degradation : development and breakdown of terrestrial environments /

    Land degradation : development and breakdown of terrestrial environments / by Barrow, Christopher J.

    Published 1990
    Subjects:
    Book

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  17. 637
    Environmental geology /

    Environmental geology / by Harlow, P. G. L.

    Published 1991
    Subjects:
    Book

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  18. 638
    Tropical rainforests /

    Tropical rainforests / by Park, Chris C.

    Published 1993
    Subjects:
    Book

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  19. 639
    Directory of industrial and technological research institutes : industrial conversion of biomass /

    Directory of industrial and technological research institutes : industrial conversion of biomass /

    Published 1983
    Subjects:
    Book

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  20. 640
    Food Microbiology /

    Food Microbiology / by Frazier, W.C

    Published 1967
    Subjects:
    Book

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