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1
by Donaldson, Alan Chase
[University Park, Pa.] : [Pennsylvania State University], 1959

Thesis Book
2
[Morgantown?] : West Virginia Geological and Economic Survey, 1964

Book
3
by Parris, David C.
Trenton, NJ : New Jersey Dept. of Environmental Protection and Energy, Division of Science and Research, Geological Survey : Maps and Publications Sales Office, Bureau of Revenue, 1992

Government Document Book
4
by Swartz, Frank M. (Frank McKim), 1899-1982
Harrisburg, Pa. : Commonwealth of Pennsylvania, Department of Internal Affairs, Topographic and Geologic Survey, 1950

Government Document Book
5
by Rones, Morris, 1922-1965
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geological Survey, 1969

Government Document Book
6
by Chafetz, Henry S. (Henry Simon)
Harrisburg, PA. : Pennsylvania, Bureau of Topographic and Geological Survey, 1969

Government Document Book
7
by Hobson, John Peter, 1928-
Harrisburg, PA. : Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geological Survey, 1963

Government Document Book
8
by Wagner, Warren R. (Warren Richard), 1912-1968
[Harrisburg] Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geological Survey, 1961

Government Document Book
9
by Wagner, Walter Richard, 1928-1974
Harrisburg, PA. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1966

Government Document Book
10
by Sherwood, W. Cullen (William Cullen)
Harrisburg, PA. : Commonwealth of Pennsylvania [Department of Internal Affairs, Bureau of Topographic and Geological Survey], 1964

Thesis Book
11
by Meisler, Harold
Washington : U.S. Govt. Print. Off., 1968

Government Document Book
12
by Carswell, Louis D., Hollowell, Jerrald R.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1968

Government Document Book
13
by Sherwood, W. Cullen (William Cullen)
Harrisburg, PA. : Pennsylvania, Bureau of Topographic and Geological Survey, 1964

Government Document Thesis Book
14
[Washington, D.C.] : Denver, CO : U.S. G.P.O. ; For sale by Books and Open-File Reports Section, U.S. Geological Survey, 1991

Government Document Book
15
by Thompson, Richard Rogers
Harrisburg, PA. : Commonwealth of Pennsylvania, Department of Internal Affairs, Bureau of Topographic and Geological Survey, 1963

Government Document Book
16
by MacLachlan, David B.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geological Survey, 1967

Government Document Book
18
by Okuma, Angelo
[Harrisburg] : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1970

Government Document Book
19
by Clark, John H.
[Harrisburg] : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic & Geologic Survey, 1970

Government Document Book
20
by Spelman, Allen R.
Harrisburg, PA. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1966

Government Document Book