Author
United States. Department of Agriculture
United States. Bureau of Animal Industry
265 results
United States. Forest Service
134 results
United States. Department of Agriculture. Economic Research Service
129 results
National Turfgrass Evaluation Program (U.S.)
71 results
United States. Bureau of Soils
64 results
United States. Division of Botany
44 results
United States. General Accounting Office
31 results
Wiley, Harvey Washington, 1844-1930
31 results
National Science Foundation (U.S.)
28 results
United States. Agricultural Research Service
27 results
Forest Products Laboratory (U.S.)
25 results
United States. Bureau of Biological Survey
25 results
Mohler, John R.
22 results
Whitney, Milton
22 results
Texas Agricultural Extension Service
20 results
Texas. Department of Agriculture
16 results
Texas Crop and Livestock Reporting Service
15 results
United States. Department of Agriculture. Commodity Economics Division
15 results
United States. Department of Agriculture. Economic Research Service. Agriculture and Trade Analysis Division
15 results
Schreiner, Oswald
14 results
National Turfgrass Federation
13 results
United States. Environmental Protection Agency
13 results
Bigelow, W.D
12 results
Clemson Agricultural College of South Carolina. Extension Service
12 results
United States. Foreign Agricultural Service
12 results
Salmon, D. E.
11 results
United States. Forest Service. Alaska Region
11 results
Geological Survey (U.S.)
10 results
Intermountain Research Station (Ogden, Utah)
10 results
Northeastern Forest Experiment Station (Radnor, Pa.)
10 results
United States. Department of Health and Human Services
10 results
United States. Department of the Interior
10 results
United States. Science and Education Administration
10 results
Haywood, J. K.
9 results
Pacific Northwest Forest and Range Experiment Station (Portland, Or.)
9 results
United States. Agricultural Marketing Service
9 results
United States. Department of Agriculture. Statistical Reporting Service
9 results
Beltsville Agricultural Research Center
8 results
Texas Agricultural Experiment Station
8 results
United States. Agency for International Development
8 results
United States. Department of Agriculture. National Economics Division
8 results
Agricultural and Mechanical College of Texas
7 results
Cameron, Frank K.
7 results
Golf Course Superintendents Association of America
7 results
Rommel, George M.
7 results
Schroeder, E.C
7 results
United States Golf Association
7 results
United States. Animal and Plant Health Inspection Service
7 results
United States. Food and Drug Administration
7 results
more…