Author: | Gardner, E. D. |
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Year: | 1936 |
Document Type: | USBI |
SUDOC: | I 28.27:6898 |
Series: | U.S. Bureau of Mines. Information circular |
Report Number: | no. 6898 |
Subjects: | Ores--Transportation |
Mines and mineral resources--West (U.S.) | |
Links: | https://hdl.handle.net/2027/mdp.39015074128441 |
https://hdl.handle.net/2027/mdp.39015095086305 |