Columbia subject headings:
Authors, German--Biography.
Librettists--Biography.
Lyricists--Biography.
Operetta--Germany--20th century.
Rideamus, 1874-1956.
Harvard subject headings:
Authors, German--Biography
Librettists--Biography.
Lyricists--Biography.
Operetta--Germany--20th century.
Rideamus, 1874-1956
Princeton subject headings:
Authors, German--Biography.
Librettists--Biography.
Lyricists--Biography.
Operetta--Germany--20th century.
Rideamus, 1874-1956.