Columbia subject headings:
Brecht, Bertolt, 1898-1956--Chronology.
Harvard subject headings:
Brecht, Bertolt, 1898-1956--Chronology.
Princeton subject headings:
Brecht, Bertolt, 1898-1956. Poems--Chronology.
Brecht, Bertolt, 1898-1956. Poems--Indexes.