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  1. 1

    Be expert with map & compass the complete orienteering handbook 由 Kjellstrom, Bjorn 1910-

    出版 1994
    Table of contents
    圖書

    Be expert with map & compass the complete orienteering handbook
  2. 2

    Maps and compasses 由 Blandford, Percy W.

    出版 1992
    圖書

    Maps and compasses
  3. 3

    Be expert with map & compass the complete "orienteering" handbook 由 Kjellstrom, Bjorn 1910-

    出版 1976
    圖書

    Be expert with map & compass the complete "orienteering" handbook
  4. 4

    Magnetic compasses and magnetometers. 由 Hine, Alfred

    出版 1968
    圖書

    Magnetic compasses and magnetometers.
  5. 5

    Magnetic compass deviation and correction a manual of the theory of the deviations and mechanical correction of magnetic compasses in ships 由 Denne, W.

    出版 1951
    圖書

    Magnetic compass deviation and correction a manual of the theory of the deviations and mechanical correction of magnetic compasses in ships
  6. 6

    Hans Christian Oersted discovers electromagnetism. IN Technology's Past. 由 Karwatka, Dennis

    發表在 Tech directions
    Article

    Hans Christian Oersted discovers electromagnetism. IN Technology's Past.

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