Columbia subject headings:
Architecture, Romanesque--Italy--Bologna--Pictorial works.
Bologna (Italy)--Buildings, structures, etc.--Pictorial works.
Church decoration and ornament--Italy--Bologna--Pictorial works.
Santuario di Santo Stefano (Bologna, Italy)--Pictorial works.
Harvard subject headings:
Bologna (Italy)--Buildings, structures, etc.
Christian art and symbolism--Italy--Bologna.
Santuario di Santo Stefano (Bologna, Italy)--Pictorial works.
Princeton subject headings:
Architecture, Romanesque--Italy--Bologna--Pictorial works.
Bologna (Italy)--Buildings, structures, etc.--Pictorial works.
Church decoration and ornament--Italy--Bologna--Pictorial works.
Santuario di Santo Stefano (Bologna, Italy)--Pictorial works.