Columbia subject headings:
Germans--Italy--History.
Italy--Emigration and immigration.
Italy--Ethnic relations.
Italy--Social conditions.
Harvard subject headings:
Germans--Italy--History.
Italy--Emigration and immigration.
Italy--Ethnic relations.
Italy--Social conditions.
Princeton subject headings:
Germans--Italy--History.
Italy--Emigration and immigration.
Italy--Ethnic relations.
Italy--Social conditions.