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Milestones in mine-safety legislation
Federal placer-mining laws and regulations
Federal placer-mining laws and regulations,
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Published Year
1930-1939 (3) *
Subject
Mining law--United States (3) *
Placer mining (2)
Mine safety--Law and legislation--Great Britain (1)
Mine safety--Law and legislation--United States (1)
Mining law--Great Britain (1)
Author
Jackson, Charles Freeman, (2)
Ilsley, L. C. (1)
Johnson, Fred W. (1)
Johnson, Frederick William, (1)
