LC data base June 24, 1992 (hdg.: Menéndez Pidal, Ramón, 1869- )
Wikipedia, Jan. 13, 2009 (Ramón Menéndez Pidal; b. March 13, 1869; d. November 14, 1968; Spanish philologist and historian; worked extensively on the history of the Spanish language and Spanish folklore. His main topic was the legend of The Cid)