@book{34593,
	author = {Oklahoma Geological Survey},
	title = {Circular.},
	publisher = {Oklahoma Geological Survey,},
	year = {1922-},
	address = {Norman :},
	note = {no.38(1956) Catalog of Hunton Fossils; no.43(1957) Catálog of Middle and Upper Ordovician Fossils.}
}