Author
United States. Department of Agriculture
Stefferud, Alfred
5
United States. Forest Service
2
Agricultural History Society
1
Birch, Thomas W.
1
Cole, David N.
1
Eisenhower, Milton Stover, 1899-1985
1
Forest Stewardship Program (U.S.)
1
Frost, Sandy
1
Hancock, Jan
1
Hayes, Jack, 1917-
1
Intermountain Research Station (Ogden, Utah)
1
Knudson, Mary K.
1
Koch, Peter, 1920-1998
1
Larson, Bruce A.
1
McCool, Stephen F.
1
Natural Resource Conservation Education Program (U.S.)
1
Northeastern Forest Experiment Station (Radnor, Pa.)
1
Rocky Mountain Research Station (Fort Collins, Colo.)
1
Russell, D. Ramsey, Jr
1
Smith, Deborah Takiff
1
Smithsonian Institution
1
Stein, Susan M.,
1
Symposium on Two Centuries of American Agriculture, 1775-1975
1
Technology & Development Program (U.S.)
1
United States. Department of Agriculture. Economic Research Service
1
United States. Federal Highway Administration
1
United States. Natural Resources Conservation Service
1
Wiser, Vivian
1
Wood Science Laboratory, Inc
1