Columbia subject headings:
Harvard subject headings:
Archaeology, Medieval--Italy--Congresses.
Excavations (Archaeology)--Italy--Congresses
Italy--Antiquities--Congresses.
Princeton subject headings:
Archaeology, Medieval--Italy--Congresses.
Excavations (Archaeology)--Italy--Congresses.
Italy--Antiquities--Congresses.
Italy--History--476-1268--Congresses.