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Institution
Collection
Subject
41
Geology
18
Pennsylvania
13
Mines and mineral resources
8
Geology, Stratigraphic
6
Water quality
4
Groundwater
more ...
4
Water quality biological assessment
3
Anthracite coal
3
Coal Geology
3
Groundwater Quality
3
Hydrology
3
Landslides
3
New Jersey
3
Water Pollution
3
Water resources development
3
Water-supply
2
Glacial epoch
2
Limestone
2
Magnetite
2
Mass-wasting
2
Natural gas
2
New York (State)
2
Petrology
2
Physical geography
2
Stream measurements
2
Water use
1
Ammonoidea
1
Bacterial pollution of water
1
Carbonate rocks
1
Carbonates
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Author
31
Geological Survey (U.S.)
8
Geological Survey (U.S.),
7
Chester County Water Resources Authority
7
Pennsylvania. Bureau of Topographic and Geologic Survey
6
Pomeroy, John S., 1929-
4
Reif, Andrew G.
more ...
3
Epstein, Jack Burton, 1935-
3
Field Conference of Pennsylvania Geologists
3
Jonas, Anna I. 1881-1974
3
Pennsylvania. Department of Environmental Resources
2
Denny, Charles Storrow, 1911-
2
Drake, Avery Ala, 1927-
2
Epstein, Anita G., 1937-
2
Graham, Jack Bennett, 1913-
2
Hosterman, John W. 1923-
2
Knopf, Eleanora Frances Bliss, 1883-
2
Loper, Connie A.
2
Richardson, G. B. 1872-1949
2
Schreffler, Curtis L.,
2
Sevon, William D.
2
Sloto, Ronald A.
2
Stose, George Willis, 1869-1960
2
Wetzel, Kim L.
2
Wood, Gordon H. 1919-
1
Appalachian Regional Commission
1
Bailey, James F.
1
Baker, Roger C. 1910-
1
Balsley, J. R.
1
Barker, James L., 1936-
1
Barlow, James A., 1923-2015
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Language
Genre
Literary Form
Era
Region
Pennsylvania
7
Chester County
6
United States
5
New Jersey
4
West Virginia
3
Allegheny County
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3
Beaver County
3
Bucks County
3
Carbon County
3
Maryland
3
Ohio
3
Schuylkill County
3
Washington County
3
York County
2
Adams County
2
Clinton County
2
Erie County
2
Fayette County
2
Lycoming County
2
New York (State)
2
Potter County
1
Allegheny River Valley (Pa. and N.Y.)
1
Appalachian Region
1
Berks County
1
Big Elk Creek Watershed (Pa. and Md.)
1
Blue Marsh Lake Region
1
Boyertown Region
1
Brandywine Creek Watershed (Pa. and Del.)
1
California
1
Centre County
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Call Number
Year of Publication