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