Columbia subject headings:
Italy--Description and travel--Congresses.
Italy--In literature--Congresses.
Travelers' writings--History and criticism--Congresses.
Travelers--Italy--Congresses.
Harvard subject headings:
Princeton subject headings:
Italy--Description and travel--Congresses.
Italy--In literature--Congresses.
Travelers' writings--History and criticism--Congresses.
Travelers--Italy--History--Congresses.