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Institution
Format
Subject
8
Water quality
7
Geophysical well logging
7
Groundwater
6
Groundwater Pollution
5
Water table
4
Aquifers
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4
Gettysburg National Military Park (Pa.) Boundaries
4
Longwall mining
4
Military parks Law and legislation
4
Water resources development
3
Barter
3
Borings
3
Coal Geology
3
Groundwater Quality
3
Historic sites
3
Historic sites Law and legislation
3
Older volunteers in social service
3
River channels
3
Water Composition
3
Wetlands
3
White Clay Creek (Pa. and Del.)
3
Wild and scenic rivers Law and legislation
2
Abandoned coal mines Fires and fire prevention
2
Acid mine drainage
2
Allegheny National Wild and Scenic River (Pa.)
2
Benthos
2
Coal mine waste
2
Courthouses
2
Economic development projects
2
Fish communities
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Author
52
Geological Survey (U.S.)
8
United States. Administration on Aging
7
Conger, Randall W.
7
United States. Bureau of Mines
6
Chester County Water Resources Authority
6
United States. Congress. Senate. Committee on Appropriations. Subcommittee on Departments of Labor, Health and Human Services, Education, and Related Agencies
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6
United States. Environmental Protection Agency
5
Pennsylvania. Bureau of Topographic and Geologic Survey
5
United States. National Park Service
4
Northeastern Forest Experiment Station (Radnor, Pa.)
4
Pennsylvania. Bureau of Mining and Reclamation
4
United States. Congress. Senate. Committee on Energy and Natural Resources
3
Forest Products Laboratory (U.S.)
3
Goode, Daniel J.
3
New Hope (Pa.)
3
Schreffler, Curtis L.
3
Sloto, Ronald A.
3
United States. Army. Corps of Engineers
3
United States. Navy Department
3
Wood, Charles R.
2
Allegheny National Forest (Agency : U.S.)
2
Bauer, Eric R.
2
Bilger, Michael D.
2
Brightbill, Robin A.
2
Burton, William C. 1952-
2
Daniels, David L. 1937-
2
Drake, Avery Ala, 1927-
2
Durlin, Randall R.
2
Kostelnik, Kevin M.
2
McGee, E. S.
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Language
Genre
Literary Form
Region
Pennsylvania
15
United States
13
Philadelphia
7
Chester County
6
Bucks County
5
Gettysburg National Military Park (Pa.)
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5
Pittsburgh
3
Delaware
3
Indiana County
3
Montgomery County
3
White Clay Creek (Pa. and Del.)
2
Allegheny National Forest
2
Allegheny National Wild and Scenic River (Pa.)
2
Cambria County
2
Ebensburg Region
2
Independence National Historical Park (Philadelphia, Pa.)
2
Northampton County
2
Pittsburgh Region
2
Tioga County
1
Allegheny National Wild and Scenic River
1
Allegheny National Wild and Scenic River Region
1
Allentown Region
1
Armstrong County
1
Berks County
1
Blair County
1
Bridgeton (Township)
1
Carbondale
1
Clarion County
1
Conestoga River Watershed
1
Cowanesque River (Pa. and N.Y.)
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Call Number
Year of Publication