Columbia subject headings:
National liberation movements--Puerto Rico.
Puerto Rico--History--Autonomy and independence movements.
Puerto Rico--Politics and government--1898-1952.
Puerto Rico--Politics and government--1952-1998.
Harvard subject headings:
Princeton subject headings:
National liberation movements--Puerto Rico.
Puerto Rico--History--Autonomy and independence movements.
Puerto Rico--Politics and government--1898-1951.
Puerto Rico--Politics and government--1952-1998.