Author: | Forbes, J. J. |
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Additional Authors: | Weaver, H. F., Ankeny, M. J. |
Year: | 1951 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7625 |
Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 7625 |
Subject: | Coal mines and mining--Inspection--United States |
Link: | https://hdl.handle.net/2027/mdp.39015078455816 |