Columbia subject headings:
Harvard subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation--Congresses.
Hacks, Peter, 1928-2003--Criticism and interpretation--Congresses.
Princeton subject headings:
Brecht, Bertolt, 1898-1956--Criticism and interpretation--Congresses.
Hacks, Peter, 1928-2003--Criticism and interpretation--Congresses.