The Carboniferous of the Appalachian basin - Stevenson, John J. (John James), 1841-1924. (Washington, Judd & Detweiler, Printers, 1903)
From Bulletin of the Geological Society of America, v. 14, 1903; v. 15, 1904; v. 17, 1906; v. 18, 1907.
Keywords: Geology, Stratigraphic -- Carboniferous; Geology -- Appalachian Mountains