Columbia subject headings:
Brecht, Bertolt, 1898-1956--Philosophy.
Dialectical materialism.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Criticism and interpretation.
Historical materialism.
Harvard subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation.
Dialectic in literature.
Dialectic--History.
Hegel, Georg Wilhelm Friedrich, 1770-1831
Philosophy in literature.
Philosophy--History
Princeton subject headings:
Brecht, Bertolt, 1898-1956--Philosophy.
Dialectical materialism.
Hegel, Georg Wilhelm Friedrich, 1770-1831--Criticism and interpretation.
Historical materialism.