Columbia subject headings:
Roads, Roman--Italy--Congresses.
Rome--Antiquities--Congresses.
Suburbs--Rome--Congresses.
Harvard subject headings:
Excavations (Archaeology)--Rome--Congresses.
Roads, Roman--Italy--Congresses.
Rome--Antiquities--Congresses.
Suburbs--Rome--Congresses.
Princeton subject headings:
Roads, Roman--Italy--Congresses.
Rome--Antiquities--Congresses.
Suburbs--Rome--Congresses.