@book{189908,
	author = {Pío  and Arriaga, José Luis.},
	title = {Cartas de Pío XII a los obispos alemanes, 1939-1944 / },
	publisher = {Nova Terra, },
	year = {[1969]},
	series = {Colección Documentos Vaticanos ; },
	address = {Barcelona : }
}