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Institution
Collection
Format
Subject
72
Geology
52
Geomagnetism
15
Groundwater
15
Water table
12
Anthracite coal
11
Pennsylvania
more ...
9
Magnetic anomalies
7
Aquifers
7
Coal Geology
6
Atmospheric radioactivity
5
Allegheny County (Pa.)
4
New York (State)
3
Allegheny National Forest (Pa.)
3
Coal mines and mining
3
Landslides
3
Radioactivity Measurement
3
West Virginia
2
Coal
2
Floods
2
Geology, Structural
2
Historic sites
2
National parks and reserves
2
Pittsburgh Region (Pa.)
2
Springfield (Bucks County, Pa. : Township)
2
Subsidences (Earth movements)
1
Allegheny County (Pa.) Climate
1
Allegheny National Forest (Pa.) Recreational use
1
Armstrong County (Pa.)
1
Beaver County (Pa.)
1
Butler County (Pa.)
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Author
131
Geological Survey (U.S.)
49
Bromery, Randolph W. 1926-2013
48
Zandle, Gerald L.
24
Wood, Gordon H. 1919-
17
Geological Survey (U.S.),
14
Chester County Water Resources Authority
more ...
13
Pennsylvania. Bureau of Topographic and Geologic Survey
9
Drake, Avery Ala, 1927-
8
Appalachian Regional Commission
8
Epstein, Jack Burton, 1935-
8
Henderson, John R.
7
Arndt, Harold H.
6
Kent, Bion H. 1925-
6
Trexler, J. Peter, 1926-
5
Boynton, G. R. 1935-
5
Briggs, Reginald P., 1929-2009
5
Pittillo, D. R.
5
Roen, John B.
5
Schweinfurth, Stanley P.
4
Bennett, Bruce L. 1917-2003
4
Danilchik, Walter
4
Kohl, William R.
4
McManus, B. Craig,
4
New Hope (Pa.)
3
Berryhill, Henry L., Jr. 1921-2013
3
Garges, John A.,
3
Kehn, Thomas M.
3
Lash, Gary George
3
McManus, B. Craig
3
Minard, James P.
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Language
Genre
Region
Pennsylvania
26
Schuylkill County
19
New Jersey
17
Chester County
16
Berks County
15
Bucks County
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12
Lancaster County
11
York County
10
Lebanon County
10
Lehigh County
10
Northumberland County
9
Allegheny County
9
Northampton County
8
Montgomery County
8
Washington County
7
Dauphin County
6
Adams County
6
Allegheny County (Pa.)
6
New York (State)
5
Cumberland County
5
Greene County
5
Warren County
4
Columbia County
4
Monroe County
3
Allegheny National Forest
3
Allegheny National Forest (Pa.)
3
Carbon County
3
Delaware
3
Delaware County
3
Pittsburgh Region
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Call Number
Year of Publication