Columbia subject headings:
Migration, Internal--Italy--History--Congresses.
Poor--Italy--Rome--History--Congresses.
Poor--Italy--Umbria--History--Congresses.
Rome (Italy)--Religious life and customs--Congresses.
Umbria (Italy)--Religious life and customs--Congresses.
Harvard subject headings:
Migration, Internal--Italy--History--Congresses.
Poor--Italy--Rome--History--Congresses.
Poor--Italy--Umbria--History--Congresses.
Rome (Italy)--Religious life and customs--Congresses.
Umbria (Italy)--Religious life and customs--Congresses.
Princeton subject headings:
Migration, Internal--Italy--Rome--History.
Migration, Internal--Italy--Umbria--History.
Poverty--Italy--Rome--History.
Poverty--Italy--Umbria--History.
Public welfare--Italy--Rome--History.
Public welfare--Italy--Umbria--History.