@book{148920,
	author = {Geological Survey (U.S.)   and MacLachlan, M. E.},
	title = {Stratigraphic nomenclature databases for the United States, its possessions and territories},
	publisher = {The Survey},
	year = {1992.},
	series = {U.S. Geological Survey digital data series},
	address = {Denver, CO},
	note = {Title from title screen.}
}