Geology of the Marathon region, Texas,
by Philip B. King.
- Washington, U.S. Govt. print. off., 1938.
- ix, 148 p. illus., 24 p. (incl. fold. maps, fold. diagrs.) 29 cm.
- U. S. Geological survey. Professional paper 187 .
At head of title: United States Department of the interior. 3 folded maps and 1 folded diagram in pocket.