Technology, employment, and output per man in iron mining / by N. Yaworski [and four others]

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Bibliographic Details
Online Access:	Online Access
Main Author:	Yaworski, Nicholas (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-13.
Subjects:	Iron mines and mining > United States. Miners > United States. Mining machinery. Iron mines and mining. Miners. United States.

Technology, employment, and output per man in iron mining / by Yaworski, Nicholas

Published 1940

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