@book{1570,
	author = {Pi y Margall, Francisco,},
	title = {El Nuevo régimen :},
	editor = {(Progreso Tipográfico)},
	publisher = {[s.n.], },
	year = {1891-1927},
	address = {Madrid : },
	note = {Variaciones en el formato},
	url = {https://hemerotecadigital.bne.es/hd/issn/2174-758X}
}