@book{24691,
	author = {Stevenson, John J.},
	title = {The Carboniferous of the Appalachian basin,},
	publisher = {Judd & Detweiler, Printers,},
	year = {1903-07.},
	address = {Washington,},
	note = {From Bulletin of the Geological Society of America, v. 14, 1903; v. 15, 1904; v. 17, 1906; v. 18, 1907.}
}