Author: | Westfield, James. |
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Additional Authors: | Keenan, C. M., Weaver, H. F. |
Year: | 1954 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7685 |
Series: | Information circular ; |
Report Number: | 7685 |
Subjects: | Coal mines and mining--United States--Safety measures |
Mining law--United States | |
Link: | https://hdl.handle.net/2027/mdp.39015078460063 |