Figueroa Mercado, Loida, Tres puntos claves Lares, idioma, soberanĂa. - San Juan de Puerto Rico Editorial Edil 1972. - 85 p. 18 cm. Bibliography: p. 83-84. LCCN: 73319094 Subjects--Topical Terms: Spanish language--Puerto Rico. Subjects--Geographic Terms: Puerto Rico--History. LC Class. No.: F1972 / .F53