Columbia subject headings:
Brazil--Politics and government--1964-1985.
Brazil--Politics and government--1985-2002.
Brazil--Politics and government--2003-
Social conflict--Brazil--History--20th century.
Social conflict--Brazil--History--21st century.
Harvard subject headings:
Social classes--Brazil
Social conflict--Brazil.
Social movements--Brazil.
Working class--Brazil.
Princeton subject headings:
Brazil--Politics and government--1964-1985.
Brazil--Politics and government--1985-2002.
Brazil--Politics and government--2003-
Social conflict--Brazil--History--20th century.
Social conflict--Brazil--History--21st century.