Columbia subject headings:
Cartography--Italy--Rome--History--Congresses.
Rome (Italy)--Maps--Congresses.
Rome (Italy)--Maps--History--Congresses.
Harvard subject headings:
Architecture, Renaissance--Italy--Rome--Congresses.
Cadastres--Italy--Rome--Congresses.
City planning--Italy--Rome--History--Congresses.
Rome (Italy)--Maps--Congresses.
Rome--Historical geography--Congresses.
Princeton subject headings:
Cartography--Italy--Rome--History--Congresses.
Maps.
Rome (Italy)--Maps--Congresses.
Rome (Italy)--Maps--History--Congresses.