Author: | Manning, R. I. C. |
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Additional Authors: | Soule, Thomas. |
Year: | 1930 |
Document Type: | MAIN |
SUDOC: | C 22.11:6351 |
Series: | Information circular / United States Department of Commerce, Bureau of Mines ; |
Report Number: | 6351 |
Subject: | Mine safety--Arizona |
Link: | https://hdl.handle.net/2027/mdp.39015095078971 |