Columbia subject headings:
Harvard subject headings:
Gubbio (Italy)--Population.
Italians--Argentina--History
Italians--Argentina.
Italy--Emigration and immigration--History--19th century.
Umbria (Italy)--Population.
Princeton subject headings:
Argentina--Emigration and immigration--History.
Gubbio (Italy)--Economic conditions.
Gubbio (Italy)--Emigration and immigration--History.
Gubbio (Italy)--Social conditions.
Umbria (Italy)--Economic conditions.
Umbria (Italy)--Emigration and immigration--History.
Umbria (Italy)--Social conditions.