Columbia subject headings:
Architecture--Italy--Rome--History--19th century.
Architecture--Italy--Rome--History--20th century.
Architecture--Italy--Rome.
Harvard subject headings:
Architecture, Modern--19th century--Italy--Rome.
Architecture, Modern--20th century--Italy--Rome.
Architecture--Italy--Rome
Princeton subject headings:
Architecture, Modern--19th century--Italy--Rome.
Architecture, Modern--20th century--Italy--Rome.
Architecture--Italy--Rome.