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The national safety competition of 1936

National safety competition of 1937

Published Year

• 1930-1939 (2)

Subject

• Coal mine accidents (2)
• Coal mines and mining--United States (2) *
• Mine safety (1)

Author

• Adams, William W. (2)
• Getzin, E. E. (2) *
• Lawrence, T. D. (2)

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