Suggested Topics within your search.
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1
2
by Faill, Rodger T.
Harrisburg : Pennsylvania Geological Survey, 1978
Harrisburg : Pennsylvania Geological Survey, 1978
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3
by Schneck, Marcus
Harrisburg, PA : Wild Resource Conservation Fund, 1999
Harrisburg, PA : Wild Resource Conservation Fund, 1999
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4
by Lytle, William S.
Harrisburg : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey, 1967
Harrisburg : Commonwealth of Pennsylvania, Dept. of Internal Affairs, Bureau of Topographic and Geologic Survey, 1967
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5
by Marasas, W. F. O.
University Park, Pa. : Pennsylvania State University Press, 1984
University Park, Pa. : Pennsylvania State University Press, 1984
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6
by Berg, Thomas M.
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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7
8
by Kelley, Dana R.
Harrisburg : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1970
Harrisburg : Commonwealth of Pennsylvania, State Planning Board, Bureau of Topographic and Geologic Survey, 1970
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9
by Lytle, William S.
[Harrisburg] : [publisher not identified], 1963
[Harrisburg] : [publisher not identified], 1963
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10
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11
by Blackmer, Gale C.
Middletown, PA : Pennsylvania Geological Survey, 2004
Middletown, PA : Pennsylvania Geological Survey, 2004
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12
13
by Hoskins, Donald M.
Harrisburg : [Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey], 1969
2nd printing, rev. 1969.
Harrisburg : [Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey], 1969
2nd printing, rev. 1969.
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14
by Van Lieu, J. A.
Washington, [D.C.] : U.S. G.P.O., 1964
Washington, [D.C.] : U.S. G.P.O., 1964
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15
by Cobb, Lyman, 1800-1864
Philadelphia : Lewistown : Desilver & Thomas ; J. H. Hickok & co. [etc.], 1836
Philadelphia : Lewistown : Desilver & Thomas ; J. H. Hickok & co. [etc.], 1836
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16
17
18
19
by Kochanov, William E., 1952-
[Harrisburg, PA] : [Harrisburg Area Geological Society], 1989
[Harrisburg, PA] : [Harrisburg Area Geological Society], 1989
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