@book{230826,
	author = {Marcos Marín, Francisco.},
	title = {Cantar de mío Cid /},
	publisher = {Biblioteca Nueva,},
	year = {1997.},
	series = {Clásicos de Biblioteca Nueva ;},
	address = {Madrid :},
	url = {https://www.digitaliapublishing.com/a/4403/}
}