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Thesis
Book
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6
by Ingham, A. I. (Albert Irwin), 1914-2002
[Harrisburg] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey 1951
[Harrisburg] : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey 1951
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Book
7
by Chance, H. M. (Henry Martyn), 1856-1937
Harrisburg, Pub. by the Board of Commissioners for the Second Geological Survey, 1880
Harrisburg, Pub. by the Board of Commissioners for the Second Geological Survey, 1880
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Book
8
by Gordon, Samuel G. (Samuel George), 1897-1952
Philadelphia [s.n.] 1922
Philadelphia [s.n.] 1922
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Book
9
by Sevon, William D.
Harrisburg : Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, Office of Conservation and Engineering Services, Bureau of Topographic and Geologic Survey, 1999
2nd ed.
Harrisburg : Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, Office of Conservation and Engineering Services, Bureau of Topographic and Geologic Survey, 1999
2nd ed.
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Government Document
Book
10
by Wagner, Walter Richard, 1928-1974
Harrisburg [Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey] 1966
Harrisburg [Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey] 1966
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Book
11
by Ashburner, Charles A. (Charles Albert), 1854-1889
Harrisburg, Board of Commissioners for the Second Geological Survey, 1885
Harrisburg, Board of Commissioners for the Second Geological Survey, 1885
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Book
12
13
by Carll, John F. (John Franklin), 1828-1904
Harrisburg : Board of Commissioners for the Second Geological Survey, 1880
Harrisburg : Board of Commissioners for the Second Geological Survey, 1880
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Book
14
by Drake, Avery Ala, 1927-
Washington, [D.C.] : U.S. G.P.O., 1965
Washington, [D.C.] : U.S. G.P.O., 1965
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Book
15
by Faill, Rodger T.
Harrisburg : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1977
Harrisburg : Commonwealth of Pennsylvania, Dept. of Environmental Resources, Bureau of Topographic and Geologic Survey, 1977
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Book
16
by Shaffner, Marchant N. (Marchant Nissley), 1897-
Harrisburg [Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey] 1963
Harrisburg [Commonwealth of Pennsylvania, Dept. of Internal Affairs, Topographic and Geologic Survey] 1963
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Book
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18
by Patterson, E. D. (Elmer Davisson)
Washington, [D.C.] : U.S. G.P.O., 1963
Washington, [D.C.] : U.S. G.P.O., 1963
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Book
19
Harrisburg? 1967
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Conference Proceeding
Book
20
by Beck, M. E.
Harrisburg : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey, 1964
Harrisburg : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey, 1964
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Book