@book{180101,
	author = {Reig, Carola. and Instituto Antonio de Nebrija.},
	title = {El Cantar de Sancho II y cerco de Zamora },
	editor = {Imp. S. Aguirre)},
	publisher = {Consejo Superior de Investigaciones Científicas, Patronato "Menéndez Pelayo", Instituto "Antonio Nebrija", },
	year = {1947 (},
	address = {Madrid : }
}