Cretaceous and Tertiary rocks of the southern Colorado Plateau; Papers persented at the symposium at Fort Lewis College, Durango, Colorado, October 12 and 13, 1972
Fassett, J.E., ed., 1973, Cretaceous and Tertiary rocks of the southern Colorado Plateau; Papers persented at the symposium at Fort Lewis College, Durango, Colorado, October 12 and 13, 1972: Four Corners Geological Society Memoir, 218 p.