Columbia subject headings:
Human rights--Puerto Rico.
Political persecution--Puerto Rico.
Puerto Rico--History--Autonomy and independence movements.
Puerto Rico--Politics and government.
Harvard subject headings:
Human rights--Puerto Rico.
Political persecution--Puerto Rico.
Puerto Rico--History--Autonomy and independence movements.
Puerto Rico--Politics and government.
Princeton subject headings:
Human rights--Puerto Rico.
Political persecution--Puerto Rico.
Puerto Rico--History--Autonomy and independence movements.
Puerto Rico--Politics and government.