Columbia subject headings:
Brecht, Bertolt, 1898-1956--Technique.
Songs, German--History and criticism.
Harvard subject headings:
Brecht, Bertolt, 1898-1956--Technique.
Songs, German--History and criticism.
Princeton subject headings:
Brecht, Bertolt, 1898-1956--Technique.
Songs, German--History and criticism.