@book{39973,
	author = {Ducasse, Ana Maria, and Gl�ockler, Olaf,},
	title = {Interaction in paired oral proficiency assessment in Spanish :},
	publisher = {Peter Lang,},
	year = {2010.},
	series = {Language Testing and Evaluation,},
	address = {Frankfurt am Main, Germany :},
	url = {http://site.ebrary.com/lib/rucke/Doc?id=10999178}
}