Author: | Koch, George S., |
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Year: | 1971 |
Document Type: | BMRA |
Issuing Agency: | U.S. Dept. of Interior, Bureau of Mines, |
SUDOC: | I 28.23:7486 |
Series: | Report of investigations / United States Department of the Interior, Bureau of Mines ; |
Report Number: | 7486 |
Subjects: | Silver mines and mining--Colorado--Custer County |
Silver--Assaying--Statistical methods | |
Link: | https://hdl.handle.net/2027/mdp.39015078521781 |