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Accident experience and cost in Virginia coal mines 1929 to 1933, inclusive

Published Year

• 1930-1939 (1) *

Subject

• Coal mines and mining--Safety measures--Virginia (1)
• Mine accidents--Virginia (1)
• Mineral industries--Safety measures--Virginia (1) *

Author

• Davies, Joseph F. (1)
• Humphrey, Hiram Brown, (1) *

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