Title: The Permo-Carboniferous orogeny in the south-central United States
First published: 1931
Subjects: Geology, Stratigraphic, Mountains, Stratigraphic Geology
Places: Ouachita Mountains (Ark. and Okla.), United States, Wichita Mountains (Okla.)
Time periods: Carboniferous
LC classification: Q57 .A533 deel 27, no. 3