Columbia subject headings:
Aquileia (Italy)--Antiquities--Congresses.
Aquileia (Italy)--History--Congresses.
Art--Italy--Aquileia--Congresses.
Art--Italy--Ravenna--Congresses.
Italy--Antiquities--Congresses.
Ravenna (Italy)--Antiquities--Congresses.
Ravenna (Italy)--History--Congresses.
Harvard subject headings:
Aquileia (Italy)--Antiquities--Congresses.
Aquileia (Italy)--History--Congresses.
Art--Italy--Aquileia--Congresses.
Art--Italy--Ravenna--Congresses.
Italy--Antiquities--Congresses.
Ravenna (Italy)--Antiquities--Congresses.
Ravenna (Italy)--History--Congresses.
Princeton subject headings:
Aquileia (Italy)--Antiquities--Congresses.
Aquileia (Italy)--History--Congresses.
Art--Italy--Aquileia--Congresses.
Art--Italy--Ravenna--Congresses.
Italy--Antiquities--Congresses.
Ravenna (Italy)--Antiquities--Congresses.
Ravenna (Italy)--History--Congresses.