Author
Geological Survey (U.S.)
8,126
United States. Bureau of Mines
2,478
United States. National Park Service
1,115
U.S. Fish and Wildlife Service
881
United States. Forest Service
771
United States. Bureau of the Census
624
National Center for Education Statistics
586
United States. Bureau of Land Management
582
National Institute of Justice (U.S.)
509
National Center for Health Statistics (U.S.)
446
United States. Department of the Army
383
National Water-Quality Assessment Program (U.S.)
334
United States. Department of Education
334
United States. Environmental Protection Agency
325
U.S. Atomic Energy Commission
311
United States. Congress. Office of Technology Assessment
308
United States. Environmental Protection Agency. Office of Research and Development
306
United States. Office of Juvenile Justice and Delinquency Prevention
288
Center of Military History
277
United States. Bureau of Labor Statistics
271
United States. National Aeronautics and Space Administration
270
National Cancer Institute (U.S.)
248
United States. Food and Drug Administration
245
United States. National Highway Traffic Safety Administration
242
United States. Bureau of Reclamation
233
Rocky Mountain Research Station (Fort Collins, Colo.)
224
United States. Department of Energy
224
United States. Forest Service. Pacific Northwest Region
224
United States. Office of Educational Research and Improvement
224
United States. Internal Revenue Service
216
United States. Department of State
214
Library of Congress
213
United States. Department of Housing and Urban Development
210
United States. Department of Agriculture
204
National Institutes of Health (U.S.)
203
Risk Reduction Engineering Laboratory (U.S.)
196
United States. Bureau of Justice Statistics
186
United States. Soil Conservation Service
185
United States. National Park Service,
180
National Agricultural Library (U.S.)
179
United States. Forest Service. Southwestern Region
175
United States. Natural Resources Conservation Service
162
Intermountain Research Station (Ogden, Utah)
159
United States. Environmental Protection Agency. Office of Research and Monitoring
159
United States. Army. Corps of Engineers
154
United States. Bureau of Justice Assistance
152
National Institute on Drug Abuse
149
United States. Department of the Interior
149
United States. National Archives and Records Administration
139
United States. Food and Drug Administration. Office of Public Affairs
137
more ...