@book{53786,
	author = {Lucas, Ceil. and Valli, Clayton. and ebrary, Inc.},
	title = {Sociolinguistic variation in American sign language},
	publisher = {Gallaudet University Press,},
	year = {c2001.},
	series = {Sociolinguistics in deaf communities series ;},
	address = {Washington, D.C. :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10078149}
}