Suggested Topics within your search.
Suggested Topics within your search.
1
by Lesley, J. P. (J. Peter), 1819-1903
Harrisburg, [Pa.] : Pennsylvania Board of Commissioners for the Geological Survey, 1889
Harrisburg, [Pa.] : Pennsylvania Board of Commissioners for the Geological Survey, 1889
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2
by Hoskins, Donald M.
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 2013
Revised 2013
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 2013
Revised 2013
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3
by Beecher, Charles Emerson, 1856-1904
Harrisburg : Published by the Board of Commissioners for the Second Geological Survey, 1884
Harrisburg : Published by the Board of Commissioners for the Second Geological Survey, 1884
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4
by Hoskins, Donald M.
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1973
[Harrisburg, Pa.] : Commonwealth of Pennsylvania, Bureau of Topographic and Geologic Survey, 1973
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5
by Sass, Daniel B.
Ithaca, N. Y., Paleontological Research Institution, 1960
Ithaca, N. Y., Paleontological Research Institution, 1960
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Book
6
7
by Hoskins, Donald M.
Harrisburg [Bureau of Topographic and Geologic Survey], 1964
Harrisburg [Bureau of Topographic and Geologic Survey], 1964
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Book
8
by Claypole, E. W. (Edward Waller), 1835-1901
Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1885
Harrisburg, Pub. by the Board of commissioners for the Second geological survey, 1885
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9
by Sass, Daniel B.
1959
1959
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Thesis
Book
10
by Hoskins, Donald M.
Harrisburg : Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey, 1999
2nd ed.
Harrisburg : Commonwealth of Pennsylvania, Department of Conservation and Natural Resources, Bureau of Topographic and Geologic Survey, 1999
2nd ed.
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11
by Hoskins, Donald M.
Harrisburg] Commonwealth of Pennsylvania, Topographic and Geologic Survey 1962
Harrisburg] Commonwealth of Pennsylvania, Topographic and Geologic Survey 1962
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Book
12
by Howell, Benjamin Franklin, 1890-
Harrisburg⁾ Dept. of Internal Affairs, 1957
Harrisburg⁾ Dept. of Internal Affairs, 1957
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Book
13
by Merrill, Glen K.
Toronto : Royal Ontario Museum, 1977
Toronto : Royal Ontario Museum, 1977
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Book
14
by Hoskins, Donald M.
Harrisburg, [Pa.] : Pennsylvania Dept. of Internal Affairs, Topographic and Geologic Survey, 1962
Harrisburg, [Pa.] : Pennsylvania Dept. of Internal Affairs, Topographic and Geologic Survey, 1962
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15
by Hoskins, Donald M.
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1980
Harrisburg [Pa.] : Pennsylvania Bureau of Topographic and Geologic Survey, 1980
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16
by Claypole, E. W. (Edward Waller), 1835-1901
Harrisburg [Pa.] : Pub. by the Board of commissioners for the Second geological survey, 1885
Harrisburg [Pa.] : Pub. by the Board of commissioners for the Second geological survey, 1885
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17
by Lesquereux, Leo, 1806-1889
Harrisburg, Pa. : Board of Commissioners for the Second Geological Survey, 1880
Harrisburg, Pa. : Board of Commissioners for the Second Geological Survey, 1880
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18
19
by Fillmore, David L.
Albuquerque, NM : New Mexico Museum of Natural History and Science, 2012
Albuquerque, NM : New Mexico Museum of Natural History and Science, 2012
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Book
20
by Miller, A. K. (Arthur K.), 1902-1963
[Lawrence, Kansas], [publisher not identified], 1947
[Lawrence, Kansas], [publisher not identified], 1947
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