@book{98655,
	author = {Birmingham, Robert A. and ebrary, Inc.},
	title = {Spirits of earth},
	publisher = {University of Wisconsin Press,},
	year = {c2010.},
	series = {Wisconsin land and life},
	address = {Madison, Wis. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10372240}
}