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Subject "Farm mechanization"
The influence of farm machinery on production and labor.
By: Quaintance, Hadly Winfield,
Publication info: [Madison]Univ. of Wisconsin,1904.
Contributed by: Robarts - University of Toronto (archive.org)
Subjects: Agricultural laborers Agriculture Economic aspects Farm mechanization Labour and labouring classes United States
Tractors and horses in the winter wheat belt, Oklahoma, Kansas, Nebraska /
By: Tolley, H. R. - Humphries, W. R.
Publication info: Washington, D.C. :U.S. Dept. of Agriculture,1924.
Contributed by: U.S. Department of Agriculture, National Agricultural Library
Subjects: Farm mechanization Farm tractors Horses Kansas Nebraska Oklahoma