@book{1214,
	title = {Incunable },
	publisher = {[s.n.], },
	year = {1948-1976.},
	address = {Madrid : },
	url = {https://summa.upsa.es/results.vm?q=parent%3A0000048815&e=bulletinPublication&s=30&t=%2Bcreation&lang=es&view=main}
}