בתוך החיפוש שלך נושאים מוצעים
בתוך החיפוש שלך נושאים מוצעים
Environmental aspects
3,239
Pollution
2,378
Safety measures
2,085
Testing
2,066
Airplanes
1,944
Aspect de l'environnement
1,878
Sécurité
1,598
יותר ...
1
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Government Document
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2
[Washington, D.C.] : National Science Foundation, 1990
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Government Document
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3
Washington, D.C. : Springfield, Va. : U.S. Dept. of Energy, Assistant Secretary for Fossil Energy, Office of Coal Technology ; Available from the National Technical Information Service, 1989
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Government Document
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4
5
מאת Hoffman, J. D. (James D.)
[Denver, Colo.] : U.S. Geological Survey : [USGS Center for Distribution], 1994
[Denver, Colo.] : U.S. Geological Survey : [USGS Center for Distribution], 1994
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Government Document
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6
Washington, D.C. : Springfield, Va. : U.S. Dept. of Energy, Assistant Secretary for Fossil Energy, Office of Coal Technology ; Available from the National Technical Information Service, 1989
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Government Document
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7
8
מאת Corliss, William R.
Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1969
Washington, D.C. : National Aeronautics and Space Administration : [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1969
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Government Document
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9
Washington [Water Quality Office, Environmental Protection Agency]; for sale by the Supt. of Docs., U.S. Govt. Print. Off. 1971
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Government Document
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10
[Washington, D.C.?] : U.S. Dept. of Transportation, Federal Aviation Administration, 1995
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Government Document
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11
[Washington, D.C.] : U.S. Dept. of Transportation, Federal Highway Administration, 2009
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Government Document
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12
מאת Puglio, D. G. (Donald G.)
Washington : U.S. Dept. of the Interior, Bureau of Mines, 1979
Washington : U.S. Dept. of the Interior, Bureau of Mines, 1979
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Government Document
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13
מאת Bosch, Harold R.
Washington : Springfield, Va. : Dept. of Transportation, Federal Highway Administration, Offices of Research & Development ; for sale by the National Technical Information Service, 1978
Washington : Springfield, Va. : Dept. of Transportation, Federal Highway Administration, Offices of Research & Development ; for sale by the National Technical Information Service, 1978
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Government Document
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14
15
16
מאת Srinivasan, Jagannathan
[Washington, D. C.] : Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, Division of Reactor Safety Research, 1978
[Washington, D. C.] : Nuclear Regulatory Commission, Office of Nuclear Regulatory Research, Division of Reactor Safety Research, 1978
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17
Washington, DC : U.S. Environmental Protection Agency, 2006
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Government Document
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18
מאת Meisburger, Edward P.
Fort Belvoir, Va. : Springfield, Va. : U.S. Army, Corps of Engineers, Coastal Engineering Research Center ; National Technical Information Service, Operations Division [distributor, 1979
Fort Belvoir, Va. : Springfield, Va. : U.S. Army, Corps of Engineers, Coastal Engineering Research Center ; National Technical Information Service, Operations Division [distributor, 1979
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Government Document
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19
מאת Adams, W. W. (William Waugh), 1884-1945
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1920
Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1920
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Government Document
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