Application of large-hole burn cut in room-and-pillar mining /

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Bibliographic Details
Corporate Author: United States. Bureau of Mines
Other Authors: Schmidt, R. L. (Robert L.)
Format: Unknown
Language:English
Published: [Washington] : U.S. Dept. of the Interior, Bureau of Mines, 1975.
Series:Report of investigations (United States. Bureau of Mines) ; 7994
Subjects:
Blasting.
Mining engineering.
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650 0 |a Blasting. 
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700 1 0 |a Schmidt, R. L.  |q (Robert L.) 
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