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1
[Harrisburg] : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Office of Resources Management, Bureau of Water Resources Management, State Water Plan Division, 1989

Government Document Book
2
San Francisco : Canfield Press, 1972

Book
3
by Shaw, L. C.
Harrisburg : Commonwealth of Pennsylvania, Dept. of Forests and Waters, 1970

Book
4
Washington, D.C. : U.S. Climate Change Science Program : For sale by the Supt. of Docs., U.S. G.P.O., 2009

Government Document Book