Columbia subject headings:
Art museums--Italy--Emilia-Romagna--Guidebooks.
Art, Italian--Italy--Emilia-Romagna--Guidebooks.
Art, Modern--20th century.
Harvard subject headings:
Princeton subject headings:
Art museums--Italy--Emilia-Romagna--Directories.
Art, Modern--20th century--Directories.
Art, Modern--21st century--Directories.
Art--Italy--Emilia-Romagna--Directories.
Directories.