A new gypsum deposit in Iowa /
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| Main Author: | |
|---|---|
| Format: | Government Document Book |
| Language: | English |
| Published: |
Washington, D.C. :
U.S. G.P.O.,
1914.
|
| Series: | Geological Survey bulletin ;
580-E. Contributions to economic geology ; 1913. |
| Subjects: |