@book{130848,
	author = {Yip, Virginia, and ebrary, Inc.},
	title = {Interlanguage and learnability},
	publisher = {J. Benjamins Pub.,},
	year = {c1995.},
	series = {Language acquisition & language disorders ;},
	address = {Amsterdam ;},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10495910}
}