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- catalog alternative "Wheat and oats".
- catalog contributor b6486365.
- catalog contributor b6486366.
- catalog contributor b6486367.
- catalog contributor b6486368.
- catalog contributor b6486369.
- catalog contributor b6486370.
- catalog contributor b6486371.
- catalog contributor b6486372.
- catalog contributor b6486373.
- catalog contributor b6486374.
- catalog created "1939.".
- catalog date "1939".
- catalog date "1939.".
- catalog dateCopyrighted "1939.".
- catalog description "Includes bibliographical references.".
- catalog extent "xv, 182 p.".
- catalog isPartOf "Works Progress Administration. National research project. Studies of changing techniques and employment in agriculture. Report no. A-10".
- catalog issued "1939".
- catalog issued "1939.".
- catalog language "eng".
- catalog publisher "Philadelphia,".
- catalog spatial "United States.".
- catalog subject "Agricultural laborers United States.".
- catalog subject "Agricultural machinery.".
- catalog subject "Farm mechanization United States.".
- catalog subject "HD1751 .A1 no. A-10".
- catalog subject "Oats United States.".
- catalog subject "Oats.".
- catalog subject "S441 .N3 no. A-10".
- catalog subject "Wheat United States.".
- catalog title "Changes in technology and labor requirements in crop production: wheat and oats, by Robert B. Elwood, Lloyd E. Arnold, D. Clarence Schmutz and Eugene G. McKibben.".
- catalog title "Wheat and oats".
- catalog type "text".