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  1. 1

    Chlorofluorocarbons and their effect on stratospheric ozone : (second report).

    Published 1979
    Book
  2. 2

    Quantitative aquatic biological indicators. by Phillips, David J H

    Published 1980
    Book
  3. 3

    Pandora's poison : chlorine, health, and a new environmental strategy / Joe Thornton. by Thornton, Joe

    Published 2000
    Book
  4. 4
  5. 5