@book{22223,
	author = {Richards, J. D. and ebrary, Inc.},
	title = {The Vikings},
	publisher = {Oxford University Press,},
	year = {2005.},
	series = {Very short introductions ;},
	address = {Oxford ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10271523}
}