Safety practices in churn drilling at Morenci Branch, Phelps Dodge Corp, Morenci, Ariz. / by Alan A. Sharp and Allen D. Look.

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Main Author: Sharp, Alan A.
Corporate Author: United States. Bureau of Mines
Other Authors: Look, Allen D.
Format: Government Document Book
Language:English
Published: [Washington, D.C.?] : Dept. of the Interior, Bureau of Mines, 1950.
Series:Information circular (United States. Bureau of Mines) ; 7548.
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