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1
by Ellison, Robert L.
Harrisburg, PA. : Pennsylvania, Bureau of Topographic and Geological Survey, 1965

Government Document Book
2
by Faill, Rodger T.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1978

Government Document Book
3
by Walker, Roger G.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1972

Government Document Book
4
by Oliver, William Albert, 1926-2005
[Harrisburg, Pa.] : Pennsylvania, Bureau of Topographic and Geological Survey, 1971

Government Document Book
5
Harrisburg, Pa. : Dept. of internatl affairs, Topographic and geologic survey, 1939

Book
6
by Ellison, Robert L.
Harrisburg, PA. : Pennsylvania, Bureau of Topographic and Geological Survey, 1965

Government Document Book
7
by Frakes, Lawrence A.
Harrisburg, Pa. : Commonwealth of Pennsylvania [Department of Internal Affairs, Bureau of Topographic and Geological Survey], 1967

Thesis Book
8
by Kelley, Dana R.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1967

Government Document Book
9
by Laird, Wilson M. (Wilson Morrow), 1915-1997
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geological Survey, 1941

Book
10
by Abel, Kathleen D.
Harrisburg, Pa. : Commonwealth of Pennsylvania [Dept. of Environmental Resources, Office of Resources Management, Bureau of Topographic and Geologic Survey] : May be purchased from State Book Store, 1981

Government Document Book
11
by Faill, Rodger T., Hoskins, Donald M., Wells, Richard B.
Harrisburg, Pa. : Commonwealth of Pennsylvania [Department of Environmental Resources, Bureau of Topographic and Geological Survey], 1978

Book
12
by Heckel, Philip H.
Harrisburg [Pa.] : Pennsylvania. Bureau of Topographic and Geologic Survey, 1969

Government Document Book
13
by Frakes, Lawrence A.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geological Survey, 1967

Government Document Thesis Book
14
by Glaeser, J. Douglas
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geologic Survey, 1974

Government Document Book
15
by Woodrow, Donald L.
Harrisburg, Pa. : Pennsylvania, Bureau of Topographic and Geological Survey, 1968

Government Document Book