Author
ProQuest (Firm)
3,061 results
Library of Congress. Congressional Research Service
1,750 results
Geological Survey (U.S.)
1,572 results
SpringerLink (Online service)
726 results
United States. Environmental Protection Agency
334 results
United States. Environmental Protection Agency. Office of Air Quality Planning and Standards
290 results
Texas Water Commission
265 results
Meyer, John E.
227 results
Montgomery, Victoria K.
227 results
National Water-Quality Assessment Program (U.S.)
213 results
United States. Congress. Senate. Committee on Environment and Public Works
207 results
United States. Environmental Protection Agency. Office of Research and Development
174 results
Industrial Environmental Research Laboratory (Research Triangle Park, N.C.)
165 results
United States. Office of Water Resources Research
153 results
United States. General Accounting Office
142 results
United States. Environmental Protection Agency. Office of Water
120 results
United States. Department of Energy
116 results
Texas Natural Resource Conservation Commission
108 results
Air and Energy Engineering Research Laboratory
94 results
United States. Office of Water Research and Technology
92 results
NetLibrary, Inc
90 results
United States. Congress. Senate. Committee on Public Works
85 results
United States. National Commission on Air Quality
85 results
United States. Environmental Protection Agency. Emission Standards and Engineering Division
83 results
United States. Government Accountability Office
80 results
Environmental Sciences Research Laboratory
72 results
United States. Bureau of Mines
71 results
Atmospheric Sciences Research Laboratory
69 results
United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division
69 results
United States. Environmental Protection Agency. Emission Standards Division
57 results
Environmental Monitoring Systems Laboratory (Research Triangle Park, N.C.)
55 results
United States. Congress. House. Committee on Public Works
55 results
Knovel (Firm)
54 results
Copeland, Claudia
53 results
United States. Congress. House. Committee on Transportation and Infrastructure. Subcommittee on Water Resources and Environment
53 results
United States. Congressional Budget Office
52 results
United States. Environmental Protection Agency. Office of Air and Radiation
51 results
United States. Congress. House. Committee on Transportation and Infrastructure
50 results
Texas Air Control Board
47 results
Industrial Environmental Research Laboratory (Cincinnati, Ohio)
44 results
United States. Environmental Protection Agency. Office of Transportation and Air Quality
44 results
Environmental Research Laboratory (Athens, Ga.)
42 results
Texas Transportation Institute
42 results
United States. Bureau of Reclamation
42 results
United States. Congress. Senate. Committee on Public Works. Subcommittee on Air and Water Pollution
42 results
United States. Federal Highway Administration
42 results
Robert S. Kerr Environmental Research Laboratory
41 results
Royal Society of Chemistry (Great Britain)
39 results
United States. Bureau of Land Management
38 results
Atmospheric Research and Exposure Assessment Laboratory (U.S.)
37 results
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