Columbia subject headings:
Harvard subject headings:
Architecture, Domestic--Conservation and restoration--Italy--Congresses.
Architecture, Roman--Conservation and restoration--Italy--Congresses.
Decoration and ornament, Architectural--Conservation and restoration--Italy--Congresses.
Italy--Antiquities, Roman--Congresses.
Rome--Antiquities--Congresses.
Princeton subject headings:
Architecture, Domestic--Rome--Congresses.
Excavations (Archaeology)--Italy--Congresses.
Italy--Antiquities--Collection and preservation--Congresses.