@book{27601,
	author = {Weller, Stuart, and Krey, Frank,},
	title = {Preliminary geologic map of the Mississippian formations in the Dongola, Vienna and Brownfield quadrangles,},
	publisher = {Printed by authority of the state of Illinois,},
	year = {1939.},
	series = {Illinois.  State geological survey.  Report of investigations},
	address = {Urbana,},
	note = {At head of title: State of Illinois ... Department of registration and education ... Division of the State geological survey ...}
}