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  1. 1
    由 Bendell, Leonard
    出版 1999
    Visual Material

    Kids explorer Science, sound and energy [videorecording]
  2. 2
    由 Bendell, Leonard
    出版 1999
    Visual Material

    Kids explorer Flight [videorecording]
  3. 3
    由 Bendell, Leonard
    出版 1999
    Visual Material

    Kids explorer Origins [videorecording]
  4. 4
    由 Bendell, Leonard
    出版 1999
    Visual Material

    Kids explorer How things work [videorecording]
  5. 5
    由 Bendell, Leonard
    出版 1999
    Visual Material

    Kids explorer Prehistoric animals, reptiles and amphibians [videorecording]
  6. 6
    由 Kurtis, Bill
    出版 1997
    Visual Material

    The new explorers [videorecording]
  7. 7
    由 Luoma, Samuel N.
    出版 1984
    Visual Material

    Introduction to environmental issues
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