@book{73,
	author = {Centeno Pérez, Julia},
	title = {Números decimales: ¿Por qué? ¿Para qué?},
	publisher = {Síntesis,},
	year = {1997},
	address = {Madrid :},
	edition = {1 ed.},
	url = {https://uoh.overdrive.com/media/10133598?cid=290259}
}