Columbia subject headings:
Harvard subject headings:
Brazil--Economic conditions--1964-1985.
Brazil--Politics and government--1964-1985.
Brazil--Social conditions--1964-1985.
Brazil--Social conditions--1985-
Communism--Brazil--Congresses.
Partido Comunista Brasileiro.
Princeton subject headings:
Brazil--Economic conditions--Congresses.
Brazil--Social conditions--Congresses.
Communism--Brazil--Congresses.
Democracy--Congresses.