Columbia subject headings:
Harvard subject headings:
Brazil--Emigration and immigration--History--21st century.
Brazilians--Portugal--Social conditions--21st century.
Portugal--Emigration and immigration--History--21st century.
Princeton subject headings:
Brazil--Emigration and immigration--History--21st century.
Brazilians--Portugal--Social conditions--21st century.
Portugal--Emigration and immigration--History--21st century.