United States, 2,833 United States. Forest Service 1,130 United States. Forest Service, 1,036 United States. Department of Agriculture. Economic Research Service 645 United States. Department of Agriculture. Economic Research Service, 484 United States. Agricultural Research Service 425 United States. Animal and Plant Health Inspection Service 347 United States 341 Pacific Northwest Research Station (Portland, Or.) 295 United States. Forest Service. Pacific Northwest Region 292 Forest Products Laboratory (U.S.) 246 United States. Forest Service. Southwestern Region 226 United States. Natural Resources Conservation Service 226 United States. Forest Service. Intermountain Region 225 United States. Department of Agriculture 222 Rocky Mountain Research Station (Fort Collins, Colo.), 211 United States. Soil Conservation Service 207 Rocky Mountain Research Station (Fort Collins, Colo.) 204 United States. Forest Service. Northern Research Station, 194 National Agricultural Library (U.S.) 189 United States. Natural Resources Conservation Service, 181 United States. National Archives and Records Administration 165 Intermountain Research Station (Ogden, Utah) 162 United States. Forest Service. Southwestern Region, 160 United States. Forest Service. Southern Region 159 Pacific Northwest Research Station (Portland, Or.), 143 United States. Forest Service. Alaska Region 135 United States. Food and Nutrition Service, 134 Atomic Energy of Canada Limited 116 United States. Food and Nutrition Service 107 United States. Forest Service. Southern Research Station 95 Northeastern Forest Experiment Station (Radnor, Pa.) 91 United States. Bureau of Land Management 89 Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.) 85 United States. Forest Service. Rocky Mountain Region 85 United States. Forest Service. Eastern Region 83 Southern Forest Experiment Station (New Orleans, La.) 79 United States. Animal and Plant Health Inspection Service, 78 United States. Forest Service. Southern Research Station, 74 United States. Forest Service. Pacific Southwest Region, 72 United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs, 70 Forest Products Laboratory (U.S.), 64 United States. Forest Service. Northern Research Station 64 United States. Farm Service Agency, 63 United States. Forest Service. Pacific Northwest Region, 63 Pacific Southwest Research Station 59 Forest Inventory and Analysis Program (U.S.) 58 Team Nutrition (Program : U.S.) 58 Family Forest Research Center (U.S.) 55 United States. Department of Agriculture, 51 Center for Nutrition Policy and Promotion (U.S.), 49 U.S. Atomic Energy Commission 49 United States. Forest Service. Northern Region 47 Technology & Development Program (U.S.) 45 United States. Agricultural Marketing Service 45 United States. National Agricultural Statistics Service 45 North Central Forest Experiment Station (Saint Paul, Minn.) 43 Geometronics Service Center (U.S.) 42 United States. Forest Service. North Central Research Station 42 United States. Office of the Federal Register 42 United States. National Archives and Records Administration, 41 Tongass National Forest (Agency : U.S.), 40 Centers for Epidemiology and Animal Health (U.S.), 38 Southeastern Forest Experiment Station (Asheville, N.C.) 38 United States. Agricultural Research Service, 38 United States. Forest Service. Southern Region, 37 Agricultural System Competitiveness and Sustainability National Program (U.S.) 36 Conservation Reserve Program (U.S.), 36 United States. Agricultural Statistics Board 36 United States. Forest Service. Pacific Southwest Region 36 National Arboretum (U.S.). Floral and Nursery Plants Research Unit 35 United States. Food and Nutrition Service. Office of Policy Support, 35 United States. Rural Development 35 Mathematica Policy Research, Inc 34 SpringerLink (Online service) 34 United States. Animal and Plant Health Inspection Service. Veterinary Services 34 United States. Food and Nutrition Service. Office of Analysis and Evaluation 33 Sustainable Agriculture Research & Education (Program), 31 United States. Action 29 United States. Department of Agriculture. Food and Consumer Service. Office of Analysis and Evaluation 29 Pacific Southwest Research Station, 28 United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs 28 Scott River Ranger District (Calif.), 26 Abt Associates 25 Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.) 25 Salmon River Ranger District (Calif.), 25 United States. Bureau of Land Management, 25 Wildlife Services (U.S.), 25 Food Safety National Program (U.S.) 24 Northeastern Forest Experiment Station (Radnor, Pa.), 24 Argonne National Laboratory 23 Crop Production National Program (U.S.) 23 North Carolina. Public Schools of North Carolina, 23 Tongass National Forest (Agency : U.S.) 23 United States. Federal Highway Administration 23 United States. Rural Utilities Service, 23 Food and Nutrition Information Center (U.S.), 22 National Institute of Food and Agriculture (U.S.), 22 United States. Animal and Plant Health Inspection Service. Veterinary Services, 22 United States. Forest Service. Northeastern Research Station 22