Mining methods and costs at the Eureka Standard mine
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Main Author: | Gardner, E. D. 1885- |
---|---|
Format: | Book |
Language: | English |
Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1935.
|
Physical Description: |
14 pages : illustrations ; 26 cm. |
Series: |
Information circular (United States. Bureau of Mines) ;
6851. |
Subjects: |
In Prospector
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