| Additional Authors: | Grant, Bruce F., Friedman, Dorothy F. |
|---|---|
| Year: | 1975 |
| Document Type: | USBI |
| Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
| Series: | Information circular - U. S. Bureau of Mines ; |
| Report Number: | 8666 |
| Link: | https://hdl.handle.net/2027/mdp.39015078463356 |