Columbia subject headings:
Architecture--Italy--Catania--History--20th century.
Catania (Italy)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Italy--Catania--19th century.
Architecture--Italy--Catania--20th century.
Catania (Italy)--Buildings, structures, etc.
City planning--Italy--Catania--History.
Princeton subject headings:
Architecture--Italy--Catania--20th century.
Catania (Italy)--Buildings, structures, etc.