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- catalog alternative "Corn".
- catalog contributor b6486474.
- catalog contributor b6486475.
- catalog contributor b6486476.
- catalog contributor b6486477.
- catalog contributor b6486478.
- catalog contributor b6486479.
- catalog contributor b6486480.
- catalog created "1938.".
- catalog date "1938".
- catalog date "1938.".
- catalog dateCopyrighted "1938.".
- catalog description "Bibliographical foot-notes.".
- catalog extent "xviii, 181 p.".
- catalog isPartOf "National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques. Studies of changing techniques and employment in agriculture. [Report no. A-5]".
- catalog issued "1938".
- catalog issued "1938.".
- catalog language "eng".
- catalog publisher "Philadelphia, Pa.,".
- catalog spatial "United States.".
- catalog subject "Agricultural laborers United States.".
- catalog subject "Corn United States.".
- catalog subject "Farm mechanization United States.".
- catalog subject "S441 .N3 no. A-5".
- catalog title "Changes in technology and labor requirements in crop production: corn, by Loring K. Macy, Lloyd E. Arnold, and Eugene G. McKibben. Works Progress Administration, National Research Project.".
- catalog title "Corn".
- catalog type "text".