Upper Cretaceous and Tertiary formations of the western part of the San Juan Basin, Colorado and New Mexico,
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| Language: | English |
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| Format: | U.S. Federal Government Document Book E-Resource |
| Physical Description: | iv, 117 p. XIX pl. (part fold.; incl. col. map, 3 fold.-diagr.) tables, diagrs. 29 cm. |
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