http://pec.lib.wvu.edu/record/P12141892The Mannington oil field and the history of its development: Fossil plants from the Wichita or Permian beds of Texas.In <em>Bulletin of the Geological Society of America</em>, v.3 (1892:Apr.15). White, I. C. (Israel Charles), 1848-1927.Geology, Stratigraphic.Petroleum--West Virginia--Marion County.Paleobotany--Texas.14256