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- catalog contributor b9440200.
- catalog contributor b9440201.
- catalog contributor b9440202.
- catalog contributor b9440203.
- catalog created "[1937]".
- catalog date "1937".
- catalog date "[1937]".
- catalog dateCopyrighted "[1937]".
- catalog description "Includes bibliographical references.".
- catalog extent "xiii, 63 p. :".
- catalog isPartOf "Mineral technology and output per man studies ; report no. E-1".
- catalog issued "1937".
- catalog issued "[1937]".
- catalog language "eng".
- catalog publisher "Philadelphia, Pa. : Works Progress Administration, National Research Project and Bureau of Mines, Dept. of the Interior,".
- catalog spatial "United States.".
- catalog subject "622.0973".
- catalog subject "Mineral industries United States.".
- catalog subject "Mining engineering.".
- catalog subject "TN23 .N35 no. E-1".
- catalog title "Technology and the mineral industries / by F.G. Tryon ... [et al.] ; prepared for the National Resources Committee report on Technological trends and their social implications.".
- catalog type "text".