Columbia subject headings:
Harvard subject headings:
Immigrants--Services for--South America--Societies, etc.
South America--Emigration and immigration--Social aspects.
Princeton subject headings:
Immigrants--Services for--Argentina--Buenos Aires.
Immigrants--Services for--Brazil.
Immigrants--Services for--Chile--Santiago.
Nonprofit organizations--Argentina--Buenos Aires.
Nonprofit organizations--Brazil.
Nonprofit organizations--Chile--Santiago.