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  1. 1

    Stress in industry causes, effects, and prevention מאת Levi, Lennart

    יצא לאור 1984
    ספר

    Stress in industry causes, effects, and prevention
  2. 2

    Dictionary of occupational titles.

    יצא לאור 1949
    ספר

    Dictionary of occupational titles.
  3. 3

    Dictionary of occupational titles. Interim release.

    יצא לאור 1949
    ספר

    Dictionary of occupational titles. Interim release.

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