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Explosions in Virginia coal mines 1893 to 1933
Accident experience and cost in Virginia coal mines 1929 to 1933, inclusive
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Published Year
1930-1939 (2) *
Subject
Coal mines and mining--Safety measures--Virginia (2)
Mine accidents--Virginia (2) *
Mine explosions--Virginia (1)
Mineral industries--Safety measures--Virginia (1)
Author
Davies, Joseph F. (2)
Humphrey, Hiram Brown, (2)
