| Author: | Fine, M. M. | 
|---|---|
| Additional Authors: | Frommer, D. W. | 
| Year: | 1954 | 
| Document Type: | BMRA | 
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, | 
| SUDOC: | I 28.23:5078 | 
| Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; | 
| Report Number: | 5078 | 
| Subjects: | Phosphate mines and mining--Brazil | 
| Phosphate rock--Brazil--Purification | |
| Link: | https://hdl.handle.net/2027/mdp.39015078536698 |