@book{202497,
	author = {Foster, William C., and ebrary, Inc.},
	title = {Climate and culture change in North America AD 900-1600},
	publisher = {University of Texas Press,},
	year = {2012.},
	series = {Clifton and Shirley Caldwell Texas heritage series ;},
	address = {Austin :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10565393}
}