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1by Duane, William J. (William John), 1780-1865Subjects: “...Roads Pennsylvania....”
Published 1968
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2Subjects: “...Roads Pennsylvania....”
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3by Faris, John T. (John Thomson), 1871-1949Subjects: “...Roads Pennsylvania....”
Published 1927
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4Published 1984Subjects: “...Roads Pennsylvania Gettysburg National Military Park....”
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6by Hainly, Robert A.Subjects: “...Roads Design and construction Environmental aspects Pennsylvania Blockhouse Creek....”
Published 1980
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7Published 1962Subjects: “...Roads Economic aspects Pennsylvania Blairsville....”
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8by Reed, Lloyd A.Subjects: “...Roads Pennsylvania Design and construction....”
Published 1978
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9by Maiolo, John R., 1938-Subjects: “...Roads Interchanges and intersections....”
Published 1967
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12by Sauerlender, O. H. (Owen Helwig)Subjects: “...Roads Interchanges and intersections....”
Published 1966
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13
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14by Baker, Norman L., 1926-Subjects: “...Military roads Maryland History 18th century....”
Published 2013
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15Subjects: “...Roads Pennsylvania Harrisburg Region....”
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16by Reed, Lloyd A.Subjects: “...Roads Pennsylvania Harrisburg Region....”
Published 1980
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17by Snyder, Richard R.Subjects: “...Waste products as road materials Pennsylvania Dauphin County Testing....”
Published 1981
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20by Burton, R.Subjects: “...Road materials Environmental aspects Pennsylvania....”
Published 1984
Government Document Book