Columbia subject headings:
Harvard subject headings:
Greeks--Italy--Lazio--History--Congresses.
Italy--Antiquities--Congresses.
Lazio (Italy)--Antiquities--Congresses.
Lazio (Italy)--History--Congresses.
Princeton subject headings:
Greeks--Italy--Lazio--History--Congresses.
Italy--Antiquities--Congresses.
Lazio (Italy)--Antiquities--Congresses.
Lazio (Italy)--History--Congresses.