Silén Acevedo, Juan Ángel 1938-2018 creator author text pr 1972 Segunda edición revisada y ampliada. monographic spa 230 pages ; 18 cm. Juan Ángel Silén. Includes bibliographical references. National characteristics, Puerto Rican Puerto Rico Civilization Puerto Rico History Puerto Rico History Autonomy and independence movements F1958 .S5 1972 EVLG 260220 20260601140843.0 spa