@book{64749,
	author = {Martínez Guillén, Ma. Carmen,},
	title = {2+2 estratégicamente 6 :},
	publisher = {Díaz de Santos,},
	year = {2011.},
	address = {Madrid, [España] :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/136391/}
}