@book{113244,
	author = {Bird, Jessalynn Lea. and ebrary, Inc.},
	title = {Crusade and Christendom},
	publisher = {University of Pennsylvania Press,},
	year = {c2013.},
	series = {The Middle Ages series},
	address = {Philadelphia :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10748427}
}