Columbia subject headings:
Theater audiences--Europe--History--Congresses.
Theater audiences--Germany--History--18th century--Congresses.
Theater audiences--Germany--History--19th century--Congresses.
Theater--Europe--History--Congresses.
Theater--Germany--History--18th century--Congresses.
Theater--Germany--History--19th century--Congresses.
Harvard subject headings:
German drama--History and criticism--Congresses.
Theater audiences--Germany--History--18th century--Congresses.
Theater audiences--Germany--History--19th century--Congresses.
Theater--Germany--History--Congresses.
Princeton subject headings:
Theater audiences--Germany--History--18th century--Congresses.
Theater audiences--Germany--History--19th century--Congresses.
Theater audiences--History--Congresses.
Theater--Germany--History--18th century--Congresses.
Theater--Germany--History--19th century--Congresses.