Author: | Phillips, Thomas A. |
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Year: | 1978 |
Document Type: | USBI |
Issuing Agency: | Dept. of the Interior, Bureau of Mines : |
SUDOC: | I 28.27:8773 |
Series: | Information circular - Bureau of Mines ; |
Report Number: | 8773 |
Link: | https://hdl.handle.net/2027/mdp.39015078453779 |