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Explosives accidents in California metal mines
Accident experience and cost in California metal mines
Some factors affecting an accident-prevention program in metal mining in California
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Published Year
1930-1939 (3)
Subject
Mines and mineral resources--California (3) *
Mine accidents (2)
Mine explosions (1)
Mine safety (1)
Quarries and quarrying--California (1)
Author
Ash, S. H. (3) *
Smith, Emory. (1)
