Matèries dins de la cerca
Matèries dins de la cerca
Geology
120
Mines and mineral resources
41
Research
28
Water-supply
19
Hydrology
16
Géologie
12
Paleontology
12
més ...
1
Washington : Dept. of the Interior, U.S. Geological Survey, 1989
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Document de govern
Publicació Periòdica
2
3
4
Washington : Government Printing Office, 1880
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Publicació Periòdica
5
6
Washington : U.S. Geological Survey; Govt. Print. Off., 1905
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Document de govern
Publicació Periòdica
7
8
9
10
11
12
13
14
Washington, D.C. : GPO, 1933
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Document de govern
Publicació Periòdica
15
Washington, D.C. : Alexandria, Va. : U.S. G.P.O. ; For sale by Distribution Branch, Text Products Section, 1983
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Document de govern
Publicació Periòdica
16
17
Washington : Department of the Interior, United States Geological Survey ; for sale by the Supt. of Docs., U.S. Govt. Print. Off., 1903
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Document de govern
Publicació Periòdica
18
19