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Mechanization, employment, and output per man in bituminous-coal mining /

Bibliographic Details
Main Author: Hotchkiss, Willard E. (Willard Eugene), 1874-1956 (Author)
Format: Government Document eBook
Language:English
Published: Philadelphia, Pennsylvania : Work Projects Administration, National Research Project : Department of the Interior, Bureau of Mines, 1940.
Series:Mineral technology and output per man studies ; rept. no. E-9.
Subjects:
Bituminous coal industry > United States > Statistics.
Bituminous coal mines and mining > Labor productivity > United States > Statistics.
Coal miners > Effect of technological innovations on > United States.
Coal-mining machinery > United States.
Coal miners.
Coal-mining machinery.
United States.
Online Access:https://purl.fdlp.gov/GPO/gpo111124
Description
Item Description:"Work Projects Administration, National Research Project, in cooperation with Department of the Interior, Bureau of Mines."
"August 1939."
No FDLP item number available.
Physical Description:1 online resource (2 volumes (xxx, 436 pages)) : illustrations.
Bibliography:Includes bibliographical references.