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1by McLanahan, Leona O.Subjects: “...Geological Survey (U.S.). Water Resources Division. Pennsylvania District....”
Published 1991
Government Document Book -
2Published 1994Subjects: “...Spang & Company. Magnetics Division....”
Government Document Book -
3Published 1993Subjects: “...General Castings Company. Domestic Division....”
Government Document Book -
4Published 1989Subjects: “...Geological Survey (U.S.). Water Resources Division. Pennsylvania District Periodicals....”
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5Published 1983“...Pennsylvania Administrative and political divisions Maps....”
Government Document Map -
6Published 1991Subjects: “...Geological Survey (U.S.). Water Resources Division. Pennsylvania District http://id.loc.gov...”
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Government Document Serial