@book{79720,
	author = {Lahora, Cristina,},
	title = {Actividades matemáticas :},
	publisher = {Narcea, S. A. de Ediciones,},
	year = {[2020]},
	series = {Colección "Primeros años"},
	address = {Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/62915/}
}