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  1. 1
    by Kupchella, Charles E.
    Published 1993
    Book

    Environmental science living with in the system of nature.
  2. 2
    by Hanks, J.
    Published 1987
    Book

    Human populations and the world conservation strategy report from the Working Group on Population and Natural Resources of the IUCN Commission on Ecology in cooperation with the International Planned Parenthood Federation
  3. 3
    Published 1979
    Book

    Plants, people and environment
  4. 4
    by Hinckley, Alden D.
    Published 1976
    Book

    Applied ecology.
  5. 5
    by De Bell, Garrett
    Published 1970
    Book

    The environmental handbook / edited by Garrett De Bell
  6. 6
    Book

    Environmental conservation.
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