Columbia subject headings:
Harvard subject headings:
Muñoz Marín, Luis, 1898-1980.
Puerto Rico--History--Autonomy and independence movements.
Puerto Rico--Politics and government--1898-1952.
Princeton subject headings:
Muñoz Marín, Luis, 1898-1980.
Puerto Rico--History--Autonomy and independence movements.
Puerto Rico--Politics and government--1898-1952.