Columbia subject headings:
Apses (Architecture)--Conservation and restoration--Italy--Rome.
Basilica di S. Giovanni in Laterano.
Church architecture--Conservation and restoration--Italy--Rome.
Rome (Italy)--Buildings, structures, etc.
Harvard subject headings:
Basilica di S. Giovanni in Laterano--History.
Church architecture--Conservation and restoration--Italy--Rome.
Princeton subject headings:
Apses (Architecture)--Conservation and restoration--Italy--Rome.
Basilica di S. Giovanni in Laterano.
Church architecture--Conservation and restoration--Italy--Rome.
Rome (Italy)--Buildings, structures, etc.