Columbia subject headings:
Harvard subject headings:
Paraná (Brazil : State)--Emigration and immigration--Social aspects.
Paraná (Brazil : State)--History.
Princeton subject headings:
Europeans--Brazil--Paraná (State)--History--19th century.
Immigrants--Brazil--Paraná (State)--History--19th century.
Offenses against public safety--Brazil--Paraná (State)--History--19th century.
Paraná (Brazil : State)--Ethnic relations.
Police--Brazil--Paraná (State)--History--19th century.
Social conflict--Brazil--Paraná (State)--History--19th century.