@book{29257,
	author = {Ojanguren Sánchez, Ana },
	title = {El aprendizaje autónomo de lenguas en Tándem :},
	publisher = {Universidad de Oviedo,},
	year = {2006.},
	series = {Humanidades},
	address = {Oviedo, Asturias :},
	url = {http://www.loc.gov/catdir/enhancements/fy1006/2006481254-d.html}
}