Columbia subject headings:
Architecture--Italy--Abruzzo--History.
Art--Italy--Abruzzo.
Gmelin, Leopold, 1847-1916.
Harvard subject headings:
Architecture--Italy--Abruzzo.
Art historians--Italy--Abruzzo.
Gmelin, Leopold, 1788-1853.
Princeton subject headings:
Architecture--Italy--Abruzzo.
Art historians--Italy--Abruzzo.
Gmelin, Leopold, 1788-1853.