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Accident experience and cost in Pennsylvania anthracite and bituminous mines :1926-30
A study of mine roof of the coking district of Western Pennsylvania
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Published Year
1930-1939 (2) *
Subject
Industrial accidents--Pennsylvania (2) *
Coal mine accidents--Pennsylvania (1)
Coal mines and mining--Pennsylvania (1)
Coke--Pennsylvania (1)
Mine safety--Pennsylvania (1)
Author
Fene, W. J. (1)
Paul, J. W. (1)
Plein, Leopold Nicholas, (1)
