@book{105207,
	author = {Weltens, Hubertus H. and ebrary, Inc.},
	title = {The attrition of French as a foreign language},
	publisher = {Foris Publications,},
	year = {1989, c1988.},
	address = {Dordrecht [The Netherlands] :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10590070}
}