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  1. 1
    Published 2012
    Book

    Package learning materials on environment
  2. 2
    Published 2010
    Book

    Let's save the earth.
  3. 3
    by Tesar, Jenny E.
    Published 1991
    Book

    Global warming
  4. 4
    by Tesar, Jenny Elizabeth
    Published 1991
    Book

    Global warming.
  5. 5
    Published 1990
    Book

    50 simple things kids can do to save the earth
  6. 6
    by Middleton, Nick
    Published 1989
    Book

    Atlas of environmental issues
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