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1
CRCPress.; Easton, Pa. : Pennsylvania Academy of Science, 1990

Book
2
[Harrisburg] : Penna. Dept. of Environmental Resources, 1977

Book
3
by Heicher, David W.
Harrisburg, PA : Susquehanna River Basin Commission, 1989

Government Document Book
4
by Bollinger, Scott W.
Harrisburg, PA : Susquehanna River Basin Commission, 1997

Government Document Book
5
University Park, PA : Penn State Environmental Resources Research Institute, 1991

Government Document Book
6
by Traver, Carrie L.
Harrisburg, PA : Susquehanna River Basin Commission, 1997

Government Document Book
7
by Traver, Carrie L.
Harrisburg, PA : Susquehanna River Basin Commission, 1998

Government Document Book
8
by Ott, Arthur N., 1934-
Harrisburg, PA : Susquehanna River Basin Commission, 1988

Government Document Book
9
[Harrisburg, PA?] : [Pennsylvania Coastal Zone Management], 1996

Government Document Book
10
by Barker, James L., 1936-
Harrisburg, Pa. : Washington : Dept. of the Interior, Geological Survey, Water Resources Division ; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1978

Book
11
by McCarren, Edward F.
Washington, [D.C.] : U.S. Government Printing Office, 1972

Government Document Book
12
by Rasmussen, Josh Earl
[California, PA : California University of Pennsylvania], 2002

Thesis Book
13
Harrisburg, PA : Susquehanna River Basin Commission, 1988

Government Document Book
14
by Takita, Charles S.
Harrisburg, Pa. : Susquehanna River Basin Comission, 1992

Government Document Book
15
by McMorran, Carl P.
Harrisburg, Pa. : Susquehanna River Basin Commission, 1986

Book
16
by Heicher, David W.
Harrisburg, PA : Susquehanna River Basin Commission, 1989

Government Document Book
18

Serial
19
by McMorran, Carl P.
Harrisburg, Pa. : Susquehanna River Basin Commission, 1985

Book