@book{150968,
	author = {Unamuno, Miguel de, and Echevarría, Juan de, },
	title = {Dos discursos y dos artículos / },
	publisher = {Historia Nueva, },
	year = {[1930]},
	address = {[Madrid] : },
	edition = {1ª ed.},
	url = {http://bdh-rd.bne.es/viewer.vm?id=0000200800&page=1 }
}