Columbia subject headings:
Harvard subject headings:
Anarchism--Brazil--São Paulo (State)--History--20th century--Archival Sources--Catalogs.
Anarchism--Brazil--São Paulo (State)--History--20th century.
Anarchists--Brazil--São Paulo (State)--History--20th century.
Syndicalism--Brazil--São Paulo (State)--History--20th century--Archival sources--Catalogs.
Syndicalism--Brazil--São Paulo (State)--History--20th century.
São Paulo (Brazil : State). Departamento de Ordem Política e Social--Archives--Catalogs.
Princeton subject headings:
Anarchism--Brazil--São Paulo (State)--History--20th century.
Anarchists--Brazil--São Paulo (State)--History--20th century.
São Paulo (Brazil : State). Departamento de Ordem Política e Social
Syndicalism--Brazil--São Paulo (State)--History--20th century.