Author
ProQuest (Firm)
15 results
United States. Congress. House. Committee on Rivers and Harbors
4 results
Geological Survey (U.S.)
3 results
United States. Congress. Senate. Committee on Environment and Public Works
3 results
United States. War Department
3 results
Barker, James L., 1936-
2 results
Pennsylvania. Department of Environmental Resources
2 results
Allegheny County Sanitary Authority
1 results
Antes, Frederick
1 results
Bailey, James F.
1 results
Brush, Lucien M.
1 results
Busch, W. F.
1 results
Cravotta, Charles A., III
1 results
Dean, William
1 results
Fulton, John W.
1 results
Galeone, Daniel G.
1 results
Howell, Reading, 1743-1827
1 results
Koester, Harry E.
1 results
Miller, D. R.
1 results
Pennsylvania
1 results
Pennsylvania. Department of Forests and Waters
1 results
Pennsylvania. Supreme Executive Council
1 results
Penrod, Kathy A.
1 results
Philadelphia (Pa.). Water Department
1 results
Shaw, L. C.
1 results
United States. Army. Corps of Engineers. Philadelphia District
1 results
United States. Army. Corps of Engineers. Pittsburgh District
1 results
United States. Congress. House. Committee on Commerce
1 results
United States. Congress. House. Committee on Interstate and Foreign Commerce
1 results
United States. Congress. Senate. Committee on Interior and Insular Affairs
1 results
United States. Congress. Senate. Committee on Naval Affairs
1 results
United States. Department of the Army
1 results
United States. National Park Service
1 results
Wagner, C. Russell
1 results
Williams, Donald R. (Hydrologist)
1 results