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1
por McGregor, D. C. (Duncan Colin), 1929-
Ottawa, Canada : Geological Survey of Canada, 1992
Ottawa, Canada : Geological Survey of Canada, 1992
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2
por Kindle, E. M. (Edward Martin), 1869-1940
Washington : Govt. Print. Off., 1909
Washington : Govt. Print. Off., 1909
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3
por 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
por Pease, Maurice H., Jr., 1922-2012
[Washington, D.C.] : Denver, CO : U.S. G.P.O. ; For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1989
[Washington, D.C.] : Denver, CO : U.S. G.P.O. ; For sale by the Books and Open-File Reports Section, U.S. Geological Survey, 1989
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5
por Merriam, C. W. (Charles Warren), 1905-1974
Washington : Dept. of the Interior, Geological Survey : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1976
Washington : Dept. of the Interior, Geological Survey : for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1976
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6
por Jones, Thomas H. (Thomas Henry), 1912-
Harrisburg, Commonwealth of Pennsylvania Dept. of Internal Affairs, Topographic and Geologic Survey, 1957
Harrisburg, Commonwealth of Pennsylvania Dept. of Internal Affairs, Topographic and Geologic Survey, 1957
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7
por Dawson, John William, 1820-1899
[London] : [publisher not identified], 1863
[London] : [publisher not identified], 1863
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8
por Williams, Henry Shaler, 1847-1918
Washington : Govt. Print. Off., 1905
Washington : Govt. Print. Off., 1905
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9
por Lundin, Robert F.
Norman, University of Oklahoma, 1968
Norman, University of Oklahoma, 1968
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10
11
por Williams, Henry Shaler, 1847-1918
Washington : Govt. Print. Off., 1903
Washington : Govt. Print. Off., 1903
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12
por Schopf, James M. (James Morton), 1911-1978, Schwietering, J. F.
Washington : U.S. Govt. Print. Off., 1970
Washington : U.S. Govt. Print. Off., 1970
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13
por Nilsen, Tor Helge
Washington : U.S. G.P.O., 1983
Washington : U.S. G.P.O., 1983
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14
por Boucot, A. J. (Arthur James), 1924-
Washington, U.S. Govt. Print. Off., 1968
Washington, U.S. Govt. Print. Off., 1968
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15
por Merriam, C. W. (Charles Warren), 1905-1974
Washington, U.S. Govt., Print. Off., 1973
Washington, U.S. Govt., Print. Off., 1973
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16
por 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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17
18
por Teichert, Curt, 1905-1996
Washington, U.S. Govt. Print. Off., 1965
Washington, U.S. Govt. Print. Off., 1965
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19
por Pease, Maurice H., Jr., 1922-2012
Reston, VA : U.S. Geological Survey, 1988
Reston, VA : U.S. Geological Survey, 1988
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20
por Rankin, Douglas Whiting, 1931-
Washington, [D.C.] : U.S. G.P.O., 1965
Washington, [D.C.] : U.S. G.P.O., 1965
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