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  • Original Format = Book
  • Date = 1924
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Fifty-years of the Chamber of Commerce of Pittsburgh, 1874-1924.
Greater Pittsburgh Chamber of Commerce -- History., Boards of trade -- Pennsylvania -- Pittsburgh -- History.: Pittsburgh (Pa.) -- Commerce -- History.
145 p. : ill. ; 23 cm.
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The strike for union : a study of the non-union question in coal and the problems of a democratic movement based on the record of the Somerset strike, 1922-23 / by Heber Blankenhorn.
Coal Strike, Somerset County, Pa., 1922-1923., Strikes and lockouts -- Coal mining -- Pennsylvania.
ix, 259 pages, 1 unnumbered folded leaf : map 21 cm.
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William Kelly : a true history of the so-called Bessemer process
Kelly, William, 1811-1888., Bessemer process.
xv, 258 pages : illustrations ; 23 cm
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