@book{37063,
	author = {Ibáñez Torres, Raúl,},
	title = {Los secretos de la multiplicación :},
	publisher = {Los Libros de la Catarata,},
	year = {[2019]},
	series = {Miradas matemáticas ;},
	address = {Madrid :},
	url = {https://elibro.net/ereader/politecnicointernacional/252548}
}