Columbia subject headings:
Harvard subject headings:
Abruzzo (Italy)--Intellectual life--Congresses.
Italian drama--History and criticism--Congresses.
Italian drama--Italy--Abbruzzi--History and criticism--Congresses.
Italian drama--Italy--Abruzzo--Congresses.
Princeton subject headings:
Italian drama--Italy--Abruzzo--History and criticism.
Religious drama, Italian--Italy--Abruzzo--History and criticism--Congresses.
Theater--Italy--Abruzzo--History--Congresses.