Columbia subject headings:
City planning--Italy--Florence--History--19th century--Exhibitions.
City planning--Italy--Florence--History--20th century--Exhibitions.
Harvard subject headings:
City planning--Italy--Florence--History--19th century--Exhibitions.
City planning--Italy--Florence--History--20th century--Exhibitions.
Princeton subject headings:
City planning--Italy--Florence--Exhibitions.
Florence (Italy)--Description and travel--Exhibitions.