United States gypsum co. mine, Heath, Mont.
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| Title: | United States gypsum co. mine, Heath, Mont. |
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| Authors: | Mathis, G. C. |
| Source: | Mining Engineering; February 1953, Vol. 5, pTrans-180, 5p |
| Database: | Applied Science & Technology Source |
| ISSN: | 00265187 |
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