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  1. 1

    Science and technology desk reference 1,500 answers to frequently-asked or difficult-to-answer questions.

    יצא לאור 1993
    ספר

    Science and technology desk reference 1,500 answers to frequently-asked or difficult-to-answer questions.
  2. 2

    Encyclopedia of strange and unexplained physical phenomena מאת Clark, Jerome

    יצא לאור 1993
    ספר

    Encyclopedia of strange and unexplained physical phenomena
  3. 3

    Science encyclopedia מאת Graham, Ian

    ספר

    Science encyclopedia

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