Author
SpringerLink (Online service)
85,882 results
NetLibrary, Inc
29,854 results
Geological Survey (U.S.)
16,039 results
ProQuest (Firm)
8,606 results
ebrary, Inc
7,770 results
Society of Photo-optical Instrumentation Engineers
6,504 results
Knovel (Firm)
6,261 results
Taylor & Francis
6,029 results
United States. General Accounting Office
5,226 results
Gale (Firm)
4,996 results
Sage Publications
4,706 results
Rand Corporation
4,468 results
Safari, an O'Reilly Media Company
4,242 results
United States. Federal Highway Administration
4,149 results
United States. Government Accountability Office
4,020 results
JSTOR (Organization)
3,945 results
United States. Department of Energy
3,712 results
United States. National Aeronautics and Space Administration
3,433 results
United States. Forest Service
3,193 results
United States. Department of the Army
2,979 results
Texas Antiquities Committee
2,835 results
EBSCOhost
2,788 results
Texas Transportation Institute
2,745 results
National Research Council (U.S.). Transportation Research Board
2,675 results
Wiley InterScience (Online service)
2,392 results
United States. Bureau of Mines
2,372 results
United States. Bureau of the Census
2,207 results
Langley Research Center
2,121 results
Food and Agriculture Organization of the United Nations
1,895 results
Shakespeare, William, 1564-1616
1,824 results
United States. National Aeronautics and Space Administration. Scientific and Technical Information Branch
1,717 results
Texas Historical Commission
1,688 results
North Atlantic Treaty Organization. Scientific Affairs Division
1,667 results
Texas. Department of Transportation
1,654 results
United States. Soil Conservation Service
1,557 results
International Atomic Energy Agency
1,555 results
United States. National Park Service
1,515 results
Texas Agricultural Experiment Station
1,473 results
United States. Environmental Protection Agency
1,455 results
ScienceDirect (Online service)
1,351 results
United States. Army. Corps of Engineers
1,324 results
National Institute of Standards and Technology (U.S.)
1,305 results
National Science Foundation (U.S.)
1,296 results
U.S. Fish and Wildlife Service
1,283 results
Organisation for Economic Co-operation and Development
1,275 results
United States. Department of Agriculture. Economic Research Service
1,233 results
American Association of State Highway and Transportation Officials
1,216 results
Woods Hole Oceanographic Institution
1,163 results
McGraw-Hill Companies
1,150 results
Pacific Northwest Research Station (Portland, Or.)
1,139 results
more…