Columbia subject headings:
Labor movement--Brazil--Alagoas--History.
Partido Comunista Brasileiro--History.
Textile industry--Brazil--Alagoas--History.
Harvard subject headings:
Labor movement--Brazil--Alagoas--History.
Partido Comunista Brasileiro--History.
Textile industry--Brazil--Alagoas--History.
Princeton subject headings:
Labor movement--Brazil--Alagoas--History.
Partido Comunista Brasileiro--History.
Textile industry--Brazil--Alagoas--History.