@book{30201,
	author = {Utgaard, John. and Perry, Thomas G.},
	title = {Trepostomatous bryozoan fauna of the upper part of the Whitewater formation (Cincinnatian) of eastern Indiana and Western Ohio /},
	publisher = {Printed by authority of the State of Indiana,},
	year = {1964.},
	address = {Bloomington, Ind. :}
}