@book{194598,
	author = {Singleton, D. M. and Ryan, Lisa, and ebrary, Inc.},
	title = {Language acquisition},
	publisher = {Multilingual Matters,},
	year = {c2004.},
	series = {Second language acquisition ;},
	address = {Clevedon ;},
	edition = {2nd ed.},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10096140}
}