Columbia subject headings:
Brecht, Bertolt, 1898-1956--Influence.
Drama--20th century--History and criticism.
Harvard subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
Drama--History and criticism
German drama--History and criticism.
Princeton subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
Drama--History and criticism.
German drama--20th century--History and criticism.