Title: A constância do olhar vigilante
Subjects: Intelligence service, History, Political crimes and offenses, Authoritarianism, Subversive activities, Catalogs, Archives, São Paulo (Brazil : State). Departamento de Ordem Política e Social, São Paulo (Brazil : State)
Places: Brazil
People: Adhemar Pereira de Barros (1901-1969)
Time periods: 20th century