Columbia subject headings:
Azoreans--Brazil--Rio Grande do Sul (State)--History--18th century.
Rio Grande do Sul (Brazil : State)--History.
Harvard subject headings:
Azoreans--Brazil--Rio Grande do Sul--History--18th century.
Rio Grande do Sul (Brazil : State)--History
Princeton subject headings:
Azoreans in Rio Grande do Sul Brazil (State)--History.
Rio Grande do Sul (Brazil : State)--Emigration and immigration--History.