@book{7553,
	author = {McMahon, April M. S. and McMahon, Robert, and ebrary, Inc.},
	title = {Language classification by numbers},
	publisher = {Oxford University Press,},
	year = {2005.},
	series = {Oxford linguistics},
	address = {Oxford ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10271702}
}