Columbia subject headings:
Minas Gerais (Brazil)--Economic conditions.
Minas Gerais (Brazil)--Politics and government.
Working class--Political activity--Brazil--Minas Gerais.
Harvard subject headings:
Princeton subject headings:
Labor--Brazil--Minas Gerais--Political activity.
Minas Gerais (Brazil)--Economic conditions.
Minas Gerais (Brazil)--Politics and government.