| Author: | Fahrenwald, A. W. | 
|---|---|
| Year: | 1928 | 
| Document Type: | BMRA | 
| Issuing Agency: | U.S. Dept. of Commerce, Bureau of Mines, | 
| SUDOC: | I 28.23:2878 | 
| Series: | Report of investigations / United States. Bureau of Mines ; | 
| Report Number: | 2878 | 
| Subjects: | Flotation | 
| Copper mines and mining | |
| Copper mines and mining--Michigan | |
| Link: | https://hdl.handle.net/2027/mdp.39015086546473 |