@book{42233,
	author = {Alsina, Àngel,},
	title = {Desarrollo de competencias matemáticas con recursos lúdico-manipulativos :},
	publisher = {Narcea, S. A. de Ediciones,},
	year = {[2011]},
	series = {Herramientas Narcea},
	address = {Madrid :},
	edition = {Primera edición en ebook (Pdf)},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/40880/}
}