Columbia subject headings:
Baptisteries--Italy--Florence.
Battistero di San Giovanni (Florence, Italy)
Christian art and symbolism--Italy--Florence.
Harvard subject headings:
Battistero di San Giovanni (Florence, Italy)--Pictorial works.
Christian art and symbolism--Italy--Florence--Pictorial works.
Church decoration and ornament--Italy--Florence--Pictorial works.
Florence (Italy)--Buildings, structures, etc.--Pictorial works.
Princeton subject headings:
Baptisteries--Italy--Florence.
Battistero di San Giovanni (Florence, Italy)
Christian art and symbolism--Italy--Florence.