@book{25251,
	author = {Morgan, Gary, and ebrary, Inc.},
	title = {Directions in sign language acquisition},
	publisher = {John Benjamins Pub. Co.,},
	year = {c2002.},
	series = {Trends in language acquisition research,},
	address = {Philadelphia :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10022342}
}