@book{27557,
	author = {Grim, Ralph E. and Bradley, William Frank,},
	title = {A unique clay from the Goose Lake, Illinois, area,},
	publisher = {printed by authority of the state of Illinois,},
	year = {1939.},
	address = {Urbana, Illinois,},
	note = {At head of title: State of Illinois. Department of Registration and Education. Division of the State Geological Survey.}
}