Author: | Tyler, Paul M. |
---|---|
Additional Authors: | Bowles, Oliver. |
Year: | 1940 |
Document Type: | USBI |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.27:7106 |
Series: | Information circular / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 7106 |
Subject: | Mines and mineral resources |
Link: | https://hdl.handle.net/2027/mdp.39015078534644 |