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