Mining methods and costs at the Argonaut mine, Amador County, California /
| Main Author: | |
|---|---|
| Format: | Government Document Book |
| Language: | English |
| Published: |
[Washington, D.C.?] :
U.S. Dept. of Commerce, Bureau of Mines,
1930
|
| Series: | Information circular (United States. Bureau of Mines) ;
6311 |
| Subjects: |