Columbia subject headings:
Authors, American--20th century--Biography.
Authors, German--20th century--Biography.
Brecht, Bertolt, 1898-1956--Friends and associates.
Reyher, Ferdinand--Friends and associates.
Harvard subject headings:
Authors, American--20th century--Biography
Authors, German--20th century--Biography
Brecht, Bertolt, 1898-1956--Friends and associates.
Reyher, Ferdinand--Friends and associates.
Princeton subject headings:
Authors, American--20th century--Biography.
Authors, German--20th century--Biography.
Brecht, Bertolt, 1898-1956--Friends and associates.
Reyher, Ferdinand--Friends and associates.