@book{230063,
	author = {Mass, Jeffrey P. and ebrary, Inc.},
	title = {Yoritomo and the founding of the first Bakufu},
	publisher = {Stanford University Press,},
	year = {1999.},
	address = {Stanford, CA :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=2001235}
}