| Author: | Miller, Richard D. | 
|---|---|
| Year: | 1988 | 
| Document Type: | USBI | 
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, | 
| SUDOC: | I 28.27:9189 | 
| Series: | Information circular / Bureau of Mines ; | 
| Report Number: | 9189 | 
| Subject: | Helium--United States | 
| Link: | https://hdl.handle.net/2027/mdp.39015078465310 |