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Remove FiltersFormat: Microfilm Author: United States. Bureau of Mines Subject: Ground control (Mining)
United States. Bureau of Mines 2 Chekan, G. J. 1 Bauer, Eric R. 1 Friedel, Michael J. 1 Iannacchione, Anthony T. 1 Jessop, James A. more ... 1 Listak, Jeffrey M. 1 Sames, Gary P. 1 Shea-Albin, V. R. 1 Thill, Richard E. 1 Workshop on Coal Pillar Mechanics and Design 1 Workshop on Coal Pillar Mechanics and Design Santa Fe, N.M.) 1 Wuest, William J. see all ... less ...
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