Columbia subject headings:
Harvard subject headings:
Abruzzo (Italy)--Buildings, structures, etc.--Conservation and restoration--History--19th century.
Abruzzo (Italy)--Buildings, structures, etc.--Conservation and restoration--History--20th century.
Architecture--Italy--Abruzzo.
Princeton subject headings:
Architecture--Conservation and restoration--Italy--Abruzzo.
Architecture--Italy--Abruzzo.