Geology and paleontology of the Permian area northwest of Las Delicias, southwestern Coahuila, Mexico /
by Robert E. King, Carl O. Dunbar, Preston E. Cloud, Jr., [and] A. K. Miller ; [Geological Society of America].
- The Society, 1944.
- x, 172 p. : front., plates, maps (2 fold.) diagrs., profiles (3 on fold. l.) 25 cm.
- Geological Society of America. Special papers ; no. 52 .
Geology, by R. E. King.--Permian and Pennsylvanian (?) fusulines by C. O. Dunbar.--Permian brachiopods, by P. E. Cloud, jr.--Permian cephalopods, by A. K. Miller.--References cited (p. 128-130)