Author
ProQuest (Firm)
435 results
SpringerLink (Online service)
371 results
United States. Soil Conservation Service
328 results
United States. Agricultural Adjustment Administration
249 results
United States. Office of Experiment Stations
144 results
United States. Bureau of Soils
117 results
United States. Congress. House. Committee on Public Works
90 results
United States. Department of Agriculture
86 results
United States. Bureau of Plant Industry
79 results
United States. Agricultural Adjustment Agency
65 results
United States. Department of the Army
63 results
United States. Department of Agriculture. Office of the Secretary
50 results
Library of Congress. Congressional Research Service
49 results
United States. Congress. Senate. Committee on Agriculture and Forestry
44 results
United States. Bureau of Chemistry and Soils
41 results
United States. Congress. House. Committee on Agriculture
41 results
United States. Department of Agriculture. Economic Research Service
33 results
United States. Bureau of Plant Industry, Soils, and Agricultural Engineering
26 results
United States. Natural Resources Conservation Service
25 results
United States. Bureau of Chemistry
24 results
United States. Forest Service
24 results
Geological Survey (U.S.)
22 results
United States. Congress. House
20 results
United States. Bureau of Public Roads
19 results
United States. Congress. House. Committee on Rivers and Harbors
19 results
United States. War Food Administration
18 results
Heady, Earl O. (Earl Orel), 1916-1986
16 results
United States. Congress. House. Committee on Printing
15 results
United States. General Accounting Office
15 results
United States. Bureau of Agricultural Economics
14 results
United States. Congress. House. Committee on Agriculture. Subcommittee on Conservation, Credit, and Rural Development
13 results
United States. Department of Agriculture. Production and Marketing Administration
13 results
Ware, George W.
13 results
Texas Agricultural Experiment Station
12 results
United States. War Department
12 results
United States. Agricultural Research Service
11 results
United States. Congress. House. Committee on Agriculture. Subcommittee on Conservation and Credit
11 results
United States. Office of Indian Affairs
11 results
Soil Management Collaborative Research Support Program
10 results
Soil Science Society of America
10 results
Texas Transportation Institute
10 results
Texas. Department of Transportation
10 results
United States. Department of Agriculture. Natural Resource Economics Division
10 results
United States. Department of the Interior
10 results
United States. Extension Service
10 results
United States. Federal Highway Administration
10 results
United States. Office of Education
10 results
United States. Office of Foreign Agricultural Relations
10 results
Hudson, Norman
9 results
Lal, R.
9 results
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