@book{77706,
	author = {Vilarrubias, Mercè,},
	title = {Sumar y no restar :},
	publisher = {Montesinos,},
	year = {[2012]},
	series = {Ensayo},
	address = {[Barcelona] :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/60146/}
}