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Industrial silica deposits of the Pacific Northwest
Load relations in preloaded rockbolt testing
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Published Year
1960-1969 (2) *
Subject
Mine roof bolting (1)
Silica--Northwest, Pacific (1)
Author
Parsons, E. W. (2) *
Carter, George J. (1)
Habberstad, J. L. (1)
Kelly, Hal J. (1)
Osen, Lars. (1)
Rodriguez, E. R. (1)