@book{104633,
	author = {Silvagni, Federico,},
	title = {¿Ser o estar? :},
	publisher = {Arco/Libros, S. L.,},
	year = {[2013]},
	series = {Cuadernos de didáctica del español/LE},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/138373/}
}