Columbia subject headings:
Historians--Italy--Biography--Congresses.
Italy--Historiography--Congresses.
Mor, Carlo Guido--Congresses.
Harvard subject headings:
Historians--Italy--Biography--Congresses.
Italy--Historiography--Congresses.
Mor, Carlo Guido--Congresses.
Princeton subject headings:
Historians--Italy--Biography--Congresses.
Italy--Historiography--Congresses.
Mor, Carlo Guido--Congresses.