Author
United States. Forest Service
327
United States. Department of Agriculture. Economic Research Service
295
United States. Department of Agriculture
251
United States. Soil Conservation Service
190
U.S. Fish and Wildlife Service
125
National Agricultural Library (U.S.)
94
United States. General Accounting Office
84
United States. Animal and Plant Health Inspection Service
83
United States. Agricultural Research Service
76
Pacific Northwest Research Station (Portland, Or.)
66
United States. National Park Service
63
Rocky Mountain Forest and Range Experiment Station (Fort Collins, Colo.)
61
Northeastern Forest Experiment Station (Radnor, Pa.)
54
Rocky Mountain Research Station (Fort Collins, Colo.)
52
United States. Congress House
52
United States. Congress. House. Committee on Agriculture
43
Forest Products Laboratory (U.S.)
42
North Central Forest Experiment Station (Saint Paul, Minn.)
41
Intermountain Research Station (Ogden, Utah)
37
United States. Bureau of Land Management
36
United States. Bureau of Sport Fisheries and Wildlife
33
Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
31
Pacific Southwest Forest and Range Experiment Station (Berkeley, Calif.)
29
United States. Forest Service. Southern Research Station
29
United States. National Marine Fisheries Service
28
United States. Science and Education Administration
28
Betts, Harold S. (Harold Scofield)
27
United States. Natural Resources Conservation Service
27
Southeastern Forest Experiment Station (Asheville, N.C.)
26
United States. Congress. Office of Technology Assessment
24
United States. Dept. of Agriculture. Economic Research Service
21
United States. Extension Service
21
United States. Cooperative State Research Service
18
United States. Department of State. Office of Public Communication. Editorial Division
18
United States. Department of the Interior
18
Intermountain Forest and Range Experiment Station (Ogden, Utah)
16
Staff, National Research Council
16
Council for Agricultural Science and Technology
15
Southern Forest Experiment Station (New Orleans, La.)
15
Technology & Development Program (U.S.)
15
United States. Department of Agriculture. Natural Resource Economics Division
14
Cole, David N.
13
MacLean, Jayne T.
13
National Research Council (U.S.). Board on Agriculture
13
Roosevelt, Theodore, 1858-1919
13
Texas Agricultural Experiment Station
13
United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs
13
United States. Bureau of Plant Industry, Soils, and Agricultural Engineering
13
United States. Congress. House. Select Committee on Conservation of Wildlife Resources
13
United States. Environmental Protection Agency
13
more ...