Author
Geological Survey (U.S.)
Herb, William J.
4 results
Pennsylvania. Department of Environmental Resources
4 results
Hickling, N. L.
3 results
Schweinfurth, Stanley P.
3 results
Adrian, Betty M.
2 results
Brown, Deborah E.
2 results
Koester, Harry E.
2 results
Miller, D. R.
2 results
Pederson, G. L.
2 results
Shaw, L. C.
2 results
Stamer, J. K.
2 results
Yorke, Thomas H.
2 results
Appalachian Regional Commission
1 results
Barry Lawson Associates
1 results
Brown, Ann E.
1 results
Brua, Stan A.
1 results
Buckwalter, Theodore F.
1 results
Delaware River Basin Commission
1 results
Kauffman, C. D.
1 results
Norton, Linda J.
1 results
Paulachok, Gary N.
1 results
Person, M. A.
1 results
Philadelphia (Pa.). Water Department
1 results
Ritter, John R.
1 results
Sobashinski, John R.
1 results
Staubitz, W. W. (Ward W.)
1 results
United States. Army. Corps of Engineers. Pittsburgh District
1 results
Wood, Charles R.
1 results