@book{27951,
	author = {Kay, George F. and Apfel, Earl Taylor,},
	title = {The Pleistocene geology of Iowa,},
	publisher = {State of Iowa},
	year = {[1943]},
	series = {Iowa. Geological survey. Special report},
	address = {[Des Moines]},
	note = {Parts 1 and 2 were first published in Reports of the Iowa Geological survey, vols. 34 and 38, respectively. cf. Introd.}
}