Columbia subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
Harvard subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
German drama--History and criticism.
Philosophy, Marxist, in literature.
Socialism in literature.
Princeton subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
German drama--History and criticism.
Philosophy, Marxist, in literature.
Socialism in literature.