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