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Mechanization, employment, and output per man in bituminous-coal mining by Willard E. Hotchkiss ... [et al.]
Historical Society of Pennsylvania - Closed Stacks TN23.N35
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- Format:
- Book
- Government document
- Series:
- Mineral technology and output per man studies ; report no. E-9
- Language:
- English
- Subjects (All):
- Coal-mining machinery.
- Coal miners--United States.
- Coal miners.
- Bituminous coal.
- Physical Description:
- 2 v. (xxx, 436 p.) : ill., maps ; 26 cm.
- Place of Publication:
- Philadelphia, Pa. : Work Projects Administration, National Research Project in cooperation with Dept. of the Interior, Bureau of Mines, [1939]
- Notes:
- "August 1939."
- Includes bibliographical references.
- Local Notes:
- Library has vol. 1 only.
- The Balch Institute Library and Archives
- OCLC:
- 4671938
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