Columbia subject headings:
Painting, Italian--Catalogs.
Painting, Italian--Italy--Bologna--Catalogs.
Painting--Italy--Bologna--Catalogs.
Pinacoteca nazionale (Bologna, Italy)--Catalogs.
Harvard subject headings:
Painting, Italian--Catalogs
Painting--Italy--Bologna--Catalogs.
Pinacoteca nazionale (Bologna, Italy)--Catalogs.
Princeton subject headings: