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1
The accipiters : goshawk, cooper's hawk, sharp-shinned hawk /
by Jones, Stephen
Denver, Colo. : U.S. Dept. of the Interior, Bureau of Land Management, 1979

Government Document Book
2
Final environmental impact statement for the river management plan : Upper Delaware National Scenic and Recreational River, Delaware, Sullivan, and Orange counties, New York, Pike and Wayne counties, Pennsylvania /
Narrowsburg, N.Y. : U.S. Dept. of Interior, National Park Service, 1984

Government Document Book
3
Pennsylvania seismic monitoring network and related tectonic studies : final report /
by Alexander, Shelton S.
Washington, D.C. : Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1991

Government Document Book
4
Surface-water and ground-water quality in the Powell Creek and Armstrong Creek Watersheds, Dauphin County, Pennsylvania, July-September 2001 /
[Reston, Va.?] : [U.S. Dept. of the Interior, U.S. Geological Survey], 2003

Government Document Book
5
Assessment of stream quality using biological indices at selected sites in the Red Clay and White Clay Creek basins, Chester County, Pennsylvania, 1981-97 /
by Reif, Andrew G.
[Reston, Va.?] : [U.S. Dept. of the Interior, U.S. Geological Survey], 2002

Government Document Book
6
Assessment of stream quality using biological indices at selected sites in the Schuylkill River basin, Chester County, Pennsylvania, 1981-97 /
by Reif, Andrew G.
[New Cumberland, PA] : U.S. Geological Survey, 2002

Government Document Book
7
Assessment of stream quality using biological indices at selected sites in the Delaware River basin, Chester County, Pennsylvania, 1981-97 /
by Reif, Andrew G.
[Reston, Va.?] : [U.S. Dept. of the Interior, U.S. Geological Survey], 2002

Government Document Book
8
Assessment of stream quality using biological indices at selected sites in the Big Elk and Octoraro Creek basins, Chester County, Pennsylvania, 1981-97 /
by Reif, Andrew G.
[Reston, Va.?] : [U.S. Dept. of the Interior, U.S. Geological Survey], 2002

Government Document Book
9
Radon in the ground water of Chester County, Pennsylvania /
[Reston, Va.] : [U.S. Dept. of the Interior, U.S. Geological Survey], 1998

Government Document Book
10
Erie National Wildlife Refuge.
[Washington, D.C.] : U.S. Fish & Wildlife Service, 2003

Government Document Book
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