Geology of the Sierra Diablo region, Texas,
by Philip B. King. With special determinative studies of Permian fossils, by L. G. Henbest [and others]
- Washington, U.S. Govt. Print. Off., 1965.
- 185 p. illus., maps and portfolio (9 fold. illus. (1 col.) 7 fold. col. maps) 29 cm.