Author
United States. Federal Highway Administration
699 results
United States. National Bureau of Standards
462 results
ProQuest (Firm)
394 results
Texas Transportation Institute
373 results
Texas. Department of Transportation
282 results
University of Texas at Austin. Center for Transportation Research
256 results
Texas. State Department of Highways and Public Transportation
252 results
Knovel (Firm)
223 results
National Renewable Energy Laboratory (U.S.)
198 results
National Research Council (U.S.). Transportation Research Board
191 results
SpringerLink (Online service)
187 results
Texas. Department of Transportation. Research and Technology Implementation Office
187 results
Transport and Road Research Laboratory
183 results
Langley Research Center
177 results
National Institute of Standards and Technology (U.S.)
157 results
Educational Testing Service
155 results
United States. Bureau of Mines
155 results
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
155 results
Society of Photo-optical Instrumentation Engineers
146 results
Taylor & Francis
132 results
United States. National Aeronautics and Space Administration
126 results
Library of Congress. Congressional Research Service
121 results
American Association of State Highway and Transportation Officials
116 results
Texas. Highway Department
115 results
National Turfgrass Evaluation Program (U.S.)
114 results
United States. General Accounting Office
104 results
Road Research Laboratory
102 results
U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering
102 results
Scullion, Thomas
99 results
Geological Survey (U.S.)
94 results
Turner-Fairbank Highway Research Center
94 results
NetLibrary, Inc
92 results
United States. Department of Energy
92 results
Forest Products Laboratory (U.S.)
88 results
United States. National Highway Traffic Safety Administration
87 results
United States. Department of Agriculture
85 results
United States. National Aeronautics and Space Administration. Scientific and Technical Information Office
83 results
United States. Bureau of Public Roads
82 results
Achenbach, Paul R.
77 results
Lewis Research Center
74 results
U.S. Army Research Laboratory
73 results
National Cooperative Highway Research Program
70 results
U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research
68 results
National Research Council (U.S.). Highway Research Board
66 results
Bligh, Roger P.
65 results
National Center for Education Statistics
64 results
Menges, Wanda L.
63 results
United States. Defense Nuclear Agency
62 results
United States. Office of Aviation Medicine
61 results
Center for Drug Evaluation and Research (U.S.)
59 results
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