Columbia subject headings:
Architecture--Italy--Rome--History.
City planning--Italy--Rome--History--20th century.
Ridolfi, Mario--Criticism and interpretation.
Harvard subject headings:
City planning--Italy--Rome--History--20th century.
Ridolfi, Mario.
Princeton subject headings:
Architecture--Italy--Rome--History--20th century.
City planning--Italy--Rome--History--20th century.
Ridolfi, Mario--Criticism and interpretation.