@book{29563,
	author = {Utgaard, John. and Perry, Thomas G.},
	title = {Fenestrate bryozoans from the Glen Dean limestone (middle Chester) of southern Indiana /},
	publisher = {State of Indiana, Dept. of Conservation, Geological Survey,},
	year = {1960.},
	series = {Indiana. Geological Survey. Bulletin},
	address = {Bloomington :}
}