@book{166780,
	author = {Unamuno, Miguel de,},
	title = {De la enseñanza superior en España / },
	editor = {Imp. de Antonio Marzo)},
	publisher = {Revista Nueva, },
	year = {1899 (},
	address = {Madrid : },
	url = {http://bdh-rd.bne.es/viewer.vm?id=0000250878&page=1 }
}