Columbia subject headings:
Harvard subject headings:
Brazil--Economic conditions--1985-
Industrial relations--Brazil--History--20th century.
Labor unions--Brazil--History--20th century.
Labor unions--Brazil--Political activity--History--20th century.
Labor unions--Political activity--Brazil--History--20th century.
Labor--Brazil--History--20th century.
Princeton subject headings:
Industrial relations--Brazil.
Labor unions--Brazil.
Labor--Brazil.
Syndicalism--Brazil.