Safety in pneumatic drilling and related blasting operations. Opencut mine, Morenci Branch, Phelps Dodge Corp., Morenci, Ariz. / by E.R. Rodriguez and A.D. Look.
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| Other title: | Western Federation of Miners and International Union of Mine, Mill, and Smelter Workers Research Department Library. |
| Format: | Government Document Book |
| Language: | English |
| Local Note: | Archives copy 2 Western Federation of Miners and International Union of Mine, Mill, and Smelter Workers Research Department Library. |
| Published: |
[Washington],
1956.
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| Series: | Information circular (United States. Bureau of Mines) ;
7742. |
| Subjects: |