Health and miscellaneous hazards at metal and nonmetallic mines : metal- and nonmetallic-mine accident-prevention course, section 7 / [United States Dept. of the Interior, Bureau of Mines].
- United States. Bureau of Mines
- Date:
- 1957
Licence: Public Domain Mark
Credit: Health and miscellaneous hazards at metal and nonmetallic mines : metal- and nonmetallic-mine accident-prevention course, section 7 / [United States Dept. of the Interior, Bureau of Mines]. Source: Wellcome Collection.
1/96