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  1. 1

    Foreign competition in chemicals and allied products. מאת Backman, Jules

    יצא לאור 1965
    ספר

    Foreign competition in chemicals and allied products.
  2. 2

    Chemical prices, productivity, wages & profits מאת Backman, Jules 1910-

    יצא לאור 1964
    ספר

    Chemical prices, productivity, wages & profits
  3. 3

    Modern chemical processes a series of articles describing chemical manufacturing plants.

    יצא לאור 1950
    ספר

    Modern chemical processes a series of articles describing chemical manufacturing plants.

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