Cretaceous rocks of the San Juan Basin area
— Paul H. Umbach
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Recommended Citation:
- Umbach, Paul H., 1950, Cretaceous rocks of the San Juan Basin area, in: The north and east sides of the San Juan Basin, New Mexico and Colorado, Kelley, V. C.; Beaumont, E. C.; Silver, C., New Mexico Geological Society, Guidebook, 1st Field Conference, pp. 82-84. https://doi.org/10.56577/FFC-1.82