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Blind pneumatic stowing in voids in abandoned mines /
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Main Author: | Sands, Paul F. |
---|---|
Other Authors: | Boldt, C. M. K. (Christine M. K.), Ruff, T. M. |
Format: | Unknown |
Language: | English |
Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1990.
|
Series: | Information circular (United States. Bureau of Mines) ;
9268. |
Subjects: | |
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