Columbia subject headings:
Harvard subject headings:
Latin America--Politics and government--20th century.
Latin America--Social conditions--20th century.
Protest movements--Latin America--History--20th century.
Social movements--Latin America--History--20th century.
Princeton subject headings:
Latin America--Politics and government--20th century.
Latin America--Social conditions--20th century.
Protest movements--Latin America--History--20th century.
Social movements--Latin America--History--20th century.