| Author: | Zadra, J. B. | 
|---|---|
| Year: | 1959 | 
| Document Type: | USBI | 
| Issuing Agency: | U.S. Govt. Print. Off., | 
| SUDOC: | I 28.27:7912 | 
| Series: | Information Circular / Bureau of Mines ; | 
| Report Number: | 7912 | 
| Subject: | Tungsten | 
| Link: | https://hdl.handle.net/2027/mdp.39015077564089 |