1
por Gay, Frederick B.
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1981
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1981
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2
por Gay, Frederick B.
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1984
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1984
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3
por Gay, Frederick B.
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1984
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1984
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4
por Gay, Frederick B.
[Washington] : Alexandria, VA : U.S. G.P.O. ; For sale by the Distribution Branch, U.S. Geological Survey, 1985
[Washington] : Alexandria, VA : U.S. G.P.O. ; For sale by the Distribution Branch, U.S. Geological Survey, 1985
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5
por Gay, Frederick B.
Washington, D.C. : U.S. Geological Survey, 1974
Washington, D.C. : U.S. Geological Survey, 1974
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Mapa
6
por Gay, Frederick B.
Reston, Va. : U.S. Geological Survey, 1980
Reston, Va. : U.S. Geological Survey, 1980
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Manuscrito
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7
por Gay, Frederick B.
Washington, D.C. : U.S. Geological Survey, 1974
Washington, D.C. : U.S. Geological Survey, 1974
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Libro
8
por Gay, Frederick B.
Marlborough, Mass. : U.S. Dept. of the Interior, U.S. Geological Survey, 1995
Marlborough, Mass. : U.S. Dept. of the Interior, U.S. Geological Survey, 1995
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Libro
9
por Gay, Frederick B.
[Reston, Va.?] : Alexandria, VA : For sale by the Distribution Branch, USGS, Dept. of the Interior, U.S. Geological Survey ; 1985
[Reston, Va.?] : Alexandria, VA : For sale by the Distribution Branch, USGS, Dept. of the Interior, U.S. Geological Survey ; 1985
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10
por Gay, Frederick B.
Reston, Va. : U.S. Geological Survey, 1980
Reston, Va. : U.S. Geological Survey, 1980
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Mapa
11
por Gay, Frederick B.
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1981
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1981
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12
por Gay, Frederick B.
Marlborough, Mass. : Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey ; U.S. Geological Survey, Earth Science Information Center, Open-File Reports Section [distributor], 1995
Marlborough, Mass. : Denver, CO : U.S. Dept. of the Interior, U.S. Geological Survey ; U.S. Geological Survey, Earth Science Information Center, Open-File Reports Section [distributor], 1995
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13
por Gay, Frederick B., Melching, Charles S.
Marlborough, Massachusetts : U.S. Geological Survey, 1995
Marlborough, Massachusetts : U.S. Geological Survey, 1995
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14
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15
por Parker, Gene W.
Boston, Mass. : U.S. Geological Survey, 1987
Outros autores:
“...Gay, Frederick B....”Boston, Mass. : U.S. Geological Survey, 1987
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16
por Delaney, David F.
Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1980
Outros autores:
“...Gay, Frederick B....”Boston, Mass. : U.S. Dept. of the Interior, Geological Survey, 1980
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17
por Frimpter, Michael H., 1934-
[Reston, Va.?] : U.S. Dept. of the Interior, Geological Survey, 1979
Outros autores:
“...Gay, Frederick B....”[Reston, Va.?] : U.S. Dept. of the Interior, Geological Survey, 1979
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18
por Parker, Gene W.
Boston, Mass. : Denver, CO : Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports Section [distributor], 1987
Outros autores:
“...Gay, Frederick B....”Boston, Mass. : Denver, CO : Dept. of the Interior, U.S. Geological Survey ; Books and Open-File Reports Section [distributor], 1987
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19
por Parker, Gene W.
Boston, Mass. : Dept. of the Interior, U.S. Geological survey, 1987
Outros autores:
“...Gay, Frederick B....”Boston, Mass. : Dept. of the Interior, U.S. Geological survey, 1987
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Libro