Columbia subject headings:
Costa Rica--Politics and government--1821-1948.
Costa Rica--Politics and government--1948-1986.
Partido Vanguardia Popular (Costa Rica)
Political parties--Costa Rica.
Harvard subject headings:
Costa Rica--Politics and government--1821-1948.
Costa Rica--Politics and government--1948-1986.
Partido Vanguardia Popular (Costa Rica)
Political parties--Costa Rica
Princeton subject headings:
Costa Rica--Politics and government--20th century.
Partido Vanguardia Popular (Costa Rica)--History.
Political parties--Costa Rica.