@book{26903,
	author = {Condra, Geo. E.},
	title = {Correlation of the Pennsylvanian beds in the Platte and Jones point sections of Nebraska,},
	publisher = {Printed by the authority of the state of Nebraska,},
	year = {1930.},
	series = {Nebraska. Geological Survey. Bulletin 3, second ser.},
	address = {[Lincoln]},
	note = {At head of title: The University of Nebraska.}
}