Author
Smallwood, Nell W (Nell Wright), 1896-
2
Åberg, Ewert, 1909-
1
Canada
1
Canada Forestry Canada
1
Canadian Forest Service
1
Canadian Society of Agricultural Engineering
1
Kopas, Paul Sheldon, 1949-
1
Lloyd, Gordon H., 1930-
1
North Central Forest Experiment Station (Saint Paul, Minn.)
1
Rumsey, Fay
1
Smith, Erwin F (Erwin Frink), 1854-1927
1
United States
1
United States Department of Agriculture
1
United States Foreign Agricultural Service
1
University of Minnesota College of Agriculture, Forestry, and Home Economics
1
University of Minnesota Institute of Agriculture, Forestry, and Home Economics
1
Wiebe, G. A (Gustav A.)
1