@book{171405,
	author = {Canning, Joseph, and ebrary, Inc.},
	title = {A history of medieval political thought, 300-1450},
	publisher = {Routledge,},
	year = {1996.},
	address = {London ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10058158}
}