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- catalog contributor b6486470.
- catalog contributor b6486471.
- catalog contributor b6486472.
- catalog contributor b6486473.
- catalog created "1937.".
- catalog date "1937".
- catalog date "1937.".
- catalog dateCopyrighted "1937.".
- catalog extent "xiii, 63 p.".
- catalog isPartOf "National Research Project on Reemployment Opportunities and Recent Changes in Industrial Techniques. Mineral technology and output per man studies. [Report no. E-1]".
- catalog issued "1937".
- catalog issued "1937.".
- catalog language "eng".
- catalog publisher "Philadelphia, Pa.,".
- 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, T. T. Read, K. C. Heald [and others]. Prepared for the National Resources Committee report on Technological Trends and National Policy.".
- catalog type "text".