@book{221169,
	author = {Nicholson, Helen J., and ebrary, Inc.},
	title = {On the margins of crusading},
	publisher = {Ashgate,},
	year = {c2011.},
	address = {Farnham, U.K. ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10504658}
}