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1by Eavenson, Howard Nicholas, 1873-1953Subjects: “...Coal mines and mining Pennsylvania Pittsburgh....”
Published 1938
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2Published 1986Government Document Map
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3Published 1989“...Pittsburgh West, Pennsylvania--Ohio--West Virginia....”
Government Document Map -
4Published 1969Subjects: “...Student movements Pennsylvania Pittsburgh....”
Connect to the full text of this electronic book
Government Document eBook -
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6Published 1973Subjects: “...Water resources development Pennsylvania Pittsburgh....”
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