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