Columbia subject headings:
Brazil--Emigration and immigration.
Italians--Brazil--Rio Grande do Sul (State)--History.
Rio Grande do Sul (Brazil : State)--History.
Harvard subject headings:
Brazil--Emigration and immigration.
Italians--Brazil--Rio Grande do Sul (State)--History
Rio Grande do Sul (Brazil : State)--History
Rio Grande do Sul (Brazil)--History.
Princeton subject headings: