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- catalog contributor b6485843.
- catalog contributor b6485844.
- catalog contributor b6485845.
- catalog contributor b6485846.
- catalog contributor b6485847.
- catalog created "[1939]".
- catalog date "1939".
- catalog date "[1939]".
- catalog dateCopyrighted "[1939]".
- catalog description "Includes bibliographical references.".
- catalog extent "xxvii, 346, [3] p. :".
- catalog isPartOf "Mineral technology and output per man studies ; Report no. E-10".
- catalog isPartOf "Mineral technology and output per man studies ; rept. no. E-10.".
- catalog issued "1939".
- catalog issued "[1939]".
- catalog language "eng".
- catalog publisher "Philadelphia, Pa. : Work Projects Administration, National Research Project in cooperation with Dept. of the Interior, Bureau of Mines,".
- catalog spatial "United States.".
- catalog subject "Labor productivity United States.".
- catalog subject "Machinery in the workplace.".
- catalog subject "Natural gas United States.".
- catalog subject "Petroleum industry and trade United States.".
- catalog subject "TN23 .N35 no. E-10".
- catalog title "Technology, employment, and output per man in petroleum and natural-gas production / by O.E. Kiessling ... [et al.].".
- catalog type "text".