Author: | Wideman, Frank L. |
---|---|
Year: | 1947 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:4072 |
Series: | Report of investigations / Bureau of Mines ; |
Report Number: | 4072 |
Subjects: | Zinc mines and mining |
Lead mines and mining | |
Link: | https://hdl.handle.net/2027/mdp.39015078497883 |