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  1. 1

    Training module on lake environment protection, conservation and management.

    Published 1998
    Book

    Training module on lake environment protection, conservation and management.
  2. 2

    To breathe free Eastern Europe's environmental crisis.

    Published 1990
    Book

    To breathe free Eastern Europe's environmental crisis.
  3. 3

    State of the art environmental protection research.

    Published 1982
    Book

    State of the art environmental protection research.
  4. 4

    Environmental protection. by Chanlett, Emil T.

    Published 1979
    Book

    Environmental protection.

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