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- catalog contributor b437130.
- catalog created "1931.".
- catalog date "1931".
- catalog date "1931.".
- catalog dateCopyrighted "1931.".
- catalog description "Bibliography: p. 244-251.".
- catalog description "I. The plow -- II. Wheat production.".
- catalog extent "ix, 260 p. :".
- catalog isPartOf "University of California publications in economics ; v. 9".
- catalog issued "1931".
- catalog issued "1931.".
- catalog language "eng".
- catalog publisher "Berkeley, Calif. : University of California Press,".
- catalog spatial "United States".
- catalog spatial "United States.".
- catalog subject "Agricultural laborers United States.".
- catalog subject "Agricultural machinery United States.".
- catalog subject "Agricultural productivity United States.".
- catalog subject "Agriculture United States History.".
- catalog subject "H31 .C2 v.9".
- catalog subject "Plows United States.".
- catalog subject "Wheat United States.".
- catalog tableOfContents "I. The plow -- II. Wheat production.".
- catalog title "The introduction of farm machinery in its relation to the productivity of labor in the agriculture of the United States during the Nineteenth Century / by Leo Rogin.".
- catalog type "text".