Author
United States. Bureau of the Census. Data User Services Division
185
Geological Survey (U.S.)
99
SpringerLink (Online service)
53
United States. Bureau of Transportation Statistics
23
United States. Bureau of the Census
22
United States. General Accounting Office
21
NetLibrary, Inc
19
ProQuest (Firm)
16
United States. Department of Health and Human Services. Office of Inspector General
15
American Association of State Highway and Transportation Officials
14
United States. Federal Highway Administration
14
Rand Corporation
12
Texas Transportation Institute
11
United States. National Aeronautics and Space Administration. Scientific and Technical Information Program
11
National Institute of Standards and Technology (U.S.)
10
World Meteorological Organization
9
Environmental Systems Research Institute (Redlands, Calif.)
8
National Research Council (U.S.). Transportation Research Board
8
Texas. Department of Transportation
8
National Center for Education Statistics
7
National Geophysical Data Center
7
United States. Bureau of Land Management. Eastern States Office
7
United States. Bureau of the Census. Geography Division
7
United States. National Aeronautics and Space Administration
7
World Climate Research Programme
7
American Society of Mechanical Engineers. Computers in Engineering Division
6
Coastal Services Center (U.S.)
6
Cunningham, Diane
6
Domingo-Ferrer, Josep
6
National Defense Research Institute (U.S.)
6
United States. Bureau of Mines
6
United States. Environmental Protection Agency
6
United States. Environmental Protection Agency. National Air Data Branch
6
University of California, Berkeley. Institute of Transportation Studies
6
Abston, C. C. (Carl C.)
5
Air Force Human Resources Laboratory
5
Armstrong Laboratory (U.S.)
5
Intermountain Research Station (Ogden, Utah)
5
JSTOR (Organization)
5
National Institute of Justice (U.S.)
5
United States. Bureau of Justice Statistics
5
United States. National Oceanic and Atmospheric Administration
5
World Data Center A for Rockets and Satellites
5
ASME/COE. Data Base Committee
4
Air and Energy Engineering Research Laboratory
4
Cooke, Garth
4
Cotter, Gladys A.
4
DASFAA (Conference : Database Systems) Hong Kong, China)
4
EBSCO Publishing (Firm)
4
Food and Agriculture Organization of the United Nations
4
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