Author: | Loesche, H.C. |
---|---|
Year: | 1945 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7318 |
Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 7318. |
Subjects: | Mine safety--Arizona |
Copper mines and mining--Safety measures--Arizona | |
Link: | https://hdl.handle.net/2027/mdp.39015074127385 |