Exploration of the El Dorado copper mine, El Dorado County, Calif. / by R.H. Bedford.
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| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. Dept. of the Interior, Bureau of Mines,
1946.
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| Series: | Report of investigations (United States. Bureau of Mines) ;
3896. |
| Subjects: |