Columbia subject headings:
Harvard subject headings:
Baptisteries--Italy--Rome--History--Sources.
Baptisteries--Italy--Rome--History.
Battistero Lateranense--History.
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Baptisteries--Italy--Rome--History--Sources.
Baptisteries--Italy--Rome--History.
Battistero Lateranense--History.
Rome (Italy)--Buildings, structures, etc.