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Progress report on development of columbium in Arkansas for 1953
Industrial silica deposits of the Pacific Northwest
Load relations in preloaded rockbolt testing
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Published Year
1950-1959 (1)
1960-1969 (2)
Subject
Mine roof bolting (1)
Niobium ores--Arkansas--Analysis (1)
Niobium--Metallurgy (1)
Silica--Northwest, Pacific (1)
Author
Parsons, E. W. (3) *
Calhoun, W. A. (1)
Carter, George J. (1)
Fine, M. M. (1)
Habberstad, J. L. (1)
Kelly, Hal J. (1)
Nieberlein, V. A. (1)
Osen, Lars. (1)
Rodriguez, E. R. (1)