Upper Devonian Swisshelm formation of southeastern Arizona.
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| Title: | Upper Devonian Swisshelm formation of southeastern Arizona. |
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| Authors: | Epis, R. C. |
| Source: | Bulletin of the American Association of Petroleum Geologists.; October 1957, Vol. 41, p2243-2256, 14p |
| Database: | Applied Science & Technology Source |
| ISSN: | 08839247 |
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