@book{145508,
	author = {Wingard, G. Lynn.},
	title = {A detailed taxonomy of Upper Cretaceous and Lower Tertiary Crassatellidae in the eastern United States},
	publisher = {U.S. G.P.O.},
	year = {1993.},
	series = {U.S. Geological Survey professional paper},
	address = {Washington},
	note = {Spine title: Cretaceous and Tertiary Crassatellidae, eastern United States.}
}