Columbia subject headings:
Harvard subject headings:
Gardens--Italy--Rome--Design--History.
Gardens--Italy--Rome--History--19th century.
Landscape architecture--Italy--Rome--History.
Princeton subject headings:
Gardens--Italy--Rome--Design--History--19th century.
Gardens--Italy--Rome--History--19th century.
Landscape architecture--Italy--Rome--History--19th century.
Parks--Italy--Rome--History--19th century.