“Monografía geografico-historica de Galicia.” Madrid, 1905.
Montalembert. “The Monks of the West.” Ed. 1861.
Munro, Robert, M.A., M.D. “Rambles and Studies in Boznia, Herzegovina, and Dalmacia.” 2nd Ed., 1900.
Murguia. “Galicia.”
Oviedo y Arce, Dr. Eladio. “La Musica Liturgica, su pasado, su presente, su porvenir.” Paper read Jan. 10, 1908.
Ozores, D. Antonio de Valenzuela y. “Memoria geognostico-agricola sobre la Provincia de Pontevedra.” 1855.
Paret, Friedrich. “Priscillianus, ein Reformator des vierten Jahrhunderts.” Wurzburg, 1891.
Preissig, Edward, Ph.D. “Political Institutions of the Old World.” 1906.
“Proceedings of the Society of Antiquaries of Scotland.” 1892-3.
Raer, Dr. K. F. “Geschichte des Pfluges.” Heidelberg, 1845.