Author: | Engel, Abraham L. |
---|---|
Year: | 1951 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of the Interior, Bureau of Mines, |
SUDOC: | I 28.23:4758 |
Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 4758 |
Subjects: | Gold ores |
Silver ores | |
Link: | https://hdl.handle.net/2027/mdp.39015078491522 |