Columbia subject headings:
Harvard subject headings:
Italian drama--18th century--History and criticism--Congresses.
Italian drama--Appreciation--Europe--Congresses.
Italian drama--To 1700--History and criticism--Congresses.
Theater--Europe--History--Congresses.
Theater--Italy--History--17th century--Congresses.
Theater--Italy--History--18th century--Congresses.
Princeton subject headings:
Italian drama--18th century--History and criticism--Congresses.
Italian drama--To 1700--History and criticism--Congresses.
Theater--Europe--History--Congresses.