@book{64924,
	author = {Montiel Espinosa, Gisela,},
	title = {Construcción de conocimiento trigonométrico :},
	publisher = {Díaz de Santos,},
	year = {2013.},
	address = {Madrid, España :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/136236/}
}