@book{30081,
	author = {Holt, Charles Lee Roy, and Wisconsin Geological and Natural History Survey},
	title = {Geology and water resources of Portage County, Wisconsin,},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1965.},
	series = {Geological Survey (U.S.) Water-supply paper},
	address = {Washington,},
	note = {Prepared in cooperation with the University of Wisconsin Geological and Natural History Survey.}
}