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1
by MacLachlan, David B.
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1975

Government Document Book
2
by Corbin, J. Ross
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geological Survey, 1923

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Book
3
by Miller, Benjamin L. (Benjamin LeRoy), 1874-1944
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geological Survey, 1923

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Book
4
by Socolow, Arthur A.
Harrisburg, Pa. : Pennsylvania. Bureau of Topographic and Geologic Survey, 1961

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Government Document Book
5
by Corbin, J. Ross
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geological Survey, 1923

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Book
6
by Jonas, Anna I.
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geological Survey, 1923

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Book
7
by Johnson, M. E.
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geological Survey, 1923

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Book
8
by Geyer, Alan R.
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1963

Government Document Book
9
by Jonas, Anna I. (Anna Isabel), 1881-
[Harrisburg, Pa.] : Pennsylvania Bureau of Topographic and Geologic survey, 1926

Government Document Book
10
by Jonas, Anna I. (Anna Isabel), 1881-
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and geologic Survey, 1930

Government Document Book
11
by Corbin, J. Ross
[Harrisburg, Pa.] : Bureau of Topographic and Geological Survey, 1923

Book
12
Harrisburg : Commonwealth of Pennsylvania, Department of Environmental Resources, Bureau of Topographic and Geologic Survey, 1975

Book
13
by Jonas, Anna I. (Anna Isabel), 1881-1974
Harrisburg : Department of internal affairs; Topographic and geologic survey, 1930

Book
14
by Jonas, Anna I. (Anna Isabel), 1881-1974
[Harrisburg] : Department of forests and waters, Topographic and geologic survey, 1926

Book
15
by Jonas, Anna I. (Anna Isabel), 1881-1974
Harrisburg : Commonwealth of Pennsylvania, Topographic and geologic survey, 1930

Book
16
by Geyer, Alan R.
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1963

Government Document Book
17
by Jonas, Anna I. (Anna Isabel), 1881-1974, Stose, George Willis, 1869-1960
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and geologic Survey, 1930

Government Document Book
18
by O'Neill, Bernard J., 1920-
Harrisburg, Pa. : Pennsylvania Bureau of Topographic and Geologic Survey, 1975

Government Document Book
19
by Jonas, Anna I. (Anna Isabel), 1881-1974
[Harrisburg, Pa.] : Pennsylvania Bureau of Topographic and Geologic survey, 1926

Government Document Book
20
by Lapham, Davis M.
Harrisburg, PA. : Pennsylvania, Bureau of Topographic and Geological Survey, 1958

Government Document Book