Columbia subject headings:
Harvard subject headings:
Latin America--Politics and government--1948-
Radicalism--Latin America--History--20th century.
Revolutions--Latin America--History--20th century
Right and left (Political science)--Latin America--History--20th century.
Socialism--Latin America--History--20th century.
Princeton subject headings:
Latin America--Politics and government--1948-.
Radicalism--Latin America--History--20th century.
Revolutions--Latin America--History--20th century.
Right and left (Political science)--Latin America--History--20th century.
Socialism--Latin America--History--20th century.