Columbia subject headings:
Drama--Technique--Congresses.
Dramatic criticism--Congresses.
German drama--History and criticism--Congresses.
Theater--Production and direction--Congresses.
Harvard subject headings:
Drama--Technique
Dramatic criticism.
German drama--History and criticism.
Theater--Production and direction.
Princeton subject headings:
Drama--Technique.
Dramatic criticism.
German drama--History and criticism.
Theater--Production and direction.