| Additional Authors: | Sands, A. E., Wainwright, H. W., Wilson, M. W., Grafius, M. A. | 
|---|---|
| Year: | 1949 | 
| Document Type: | BMRA | 
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, | 
| SUDOC: | I 28.23:4547 | 
| Series: | Report of investigations / Bureau of Mines ; | 
| Report Number: | 4547 | 
| Subjects: | Mines and mineral resources | 
| Mineral industries | |
| Mining engineering | |
| Link: | https://hdl.handle.net/2027/mdp.39015078486647 |