@book{24423,
	author = {Alden, William C.},
	title = {The drumlins of southeastern Wisconsin (preliminary paper) /},
	publisher = {Govt. Print. Off.,},
	year = {1905.},
	series = {U.S. Geological survey. Bulletin},
	address = {Washington,},
	note = {Subject series: B, Descriptive geology, 76.}
}