The fluorspar deposits of southern Illinois /
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| Main Author: | |
|---|---|
| Format: | Government Document Electronic eBook |
| Language: | English |
| Published: |
Washington, D.C. :
Department of the Interior, United States Geological Survey,
1905.
|
| Series: | Bulletin (Geological Survey (U.S.)) ;
no. 255. Series A--Economic geology ; 50. Series B--Descriptive geology ; 62. |
| Subjects: | |
| Online Access: | CONNECT |
