Columbia subject headings:
Architecture--Italy--History--19th century.
Architecture--Italy--History--20th century.
Architecture--Italy.
Art nouveau--Italy.
Decoration and ornament, Architectural--Italy.
Harvard subject headings:
Architecture, Modern--19th century--Italy.
Architecture--Italy
Architecture--Italy--History--20th century
Art nouveau--Italy.
Decoration and ornament, Architectural--Italy.
Princeton subject headings:
Architecture, Modern--19th century--Italy.
Architecture--Italy--History--20th century.
Art nouveau (Architecture)--Italy.
Decoration and ornament, Architectural--Italy.