Columbia subject headings:
Italy--Antiquities, Roman--Congresses.
Roads, Roman--Italy, Northern--Congresses.
Via Flaminia (Italy)--Congresses.
Harvard subject headings:
Marche (Italy)--Antiquities--Congresses.
Via Flaminia (Italy)--Congresses.
Princeton subject headings:
Marche (Italy)--Antiquities--Congresses.
Via Flaminia (Italy)--Congresses.