Lower Pennsylvanian (dimple limestone) conodonts of the Marathon region, Texas / by Samuel Ellison and Roy W. Graves, Jr.
Series Titles:
On cover: The University of Missouri. School of Mines and Metallurgy. Bulletin ... Technical series, v.14, no.3. December, 1941 Bulletin (University of Missouri. School of Mines and Metallurgy). v. 14, no. 3.