Columbia subject headings:
Harvard subject headings:
Architecture, Roman--Influence--Congresses.
Architecture--Rome--Influence--Congresses.
City planning--Rome--Congresses.
Dufournet, Paul.
Princeton subject headings:
Architecture, Roman--Influence--Congresses.
Architecture--Rome--Influence--Congresses.
City planning--Rome--Congresses.
Dufournet, Paul.
Rome--Antiquities--Congresses.