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The National Safety Competition of 1929

Coal-Mine Fatalities in December, 1930

Coal-Mine Fatalities in February, 1931

Coal-Mine Fatalities in June, 1931

Coal-Mine Fatalities in May, 1931

Coal-Mine Fatalities in March, 1931

Coal-Mine Fatalities in November, 1930

Coal-Mine Fatalities in January, 1931

Published Year

• 1930-1939 (8) *

Subject

• Coal mine accidents. (8)
• Coal mines and mining -- United States. (8) *
• Mine safety. (1)

Author

• Adams, William Waugh (8)

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