Conditions in the Copper Mines of Michigan
An edition of Conditions in the Copper Mines of Michigan (1971)
Hearings before the United States House Committee on Mines and Mining, Sixty-Third Congress, second session, on Mar. 23, 1914
By United States. Congress. House. Committee on Mines and Mining.
Publish Date
1971
Publisher
U.S. Government Printing Office
Language
eng
Pages
1619