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1
Oil resources in coal and carbonaceous shales of Pennsylvania : by Charles R. Fettke.
by Fettke, Charles R. 1888-1959.
Published 1923
Book
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2
Annotated bibliography of Pennsylvania geology : supplement to 1979 /
Published 1986
Government Document Book
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4
Environmental geology of the Greater York area, York county, Pennsylvania /
by Wilshusen, John P.
Published 1979
Book
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5
Geology and ground-water resources of northern Mercer County, Pennsylvania /
by Schiner, George R., 1926-
Published 1976
Book
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6
Geology and groundwater resources of northern Berks County, Pennsylvania /
by Wood, Charles R.
Published 1978
Book
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8
Geology and mineral resources of the Sinking Spring quadrangle, Berks and Lancaster counties, Pennsylvania /
Published 1975
Book
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10
The petroleum industry and the future petroleum province in Pennsylvania, 1970 /
Published 1970
Book
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11
Greater Pittsburgh region construction aggregates /
by O'Neill, Bernard J., 1920-
Published 1974
Book
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12
Ground water resources of Bucks County, Pennsylvania /
by Greenman, D. W.
Published 1955
Book
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14
Punxsutawney quadrangle ; geology and mineral resouces /
by Ashley, Geo. H. 1866-1951.
Published 1926
Book
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15
New Holland quadrangle; Geology and mineral resources, by / Description by Anna I. Jonas.
by Jonas, Anna I. 1881-1974.
Published 1926
Book
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16
McDonald and adjacent oil fields, Allegheny and Washington Counties, Pennsylvania.
Published 1949
Book
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17
The Devonian of Pennsylvania : Middle and Upper Devonian /
Published 1939
Book
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18
The Oriskany sandstone in the subsurface of Pennsylvania /
Book
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19
Geologic map of Pennsylvania : 1980 /
Published 1980
Map Book
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20
Bulletin G.
Serial
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