Henze, H. W. (1959). Undine: Tagebuch eines Balletts / Hans Werner Henze. Piper.
Cita Chicago (17th ed.)Henze, Hans Werner. Undine: Tagebuch Eines Balletts / Hans Werner Henze. München: Piper, 1959.
Cita MLA (8th ed.)Henze, Hans Werner. Undine: Tagebuch Eines Balletts / Hans Werner Henze. Piper, 1959.
Atenció: Aquestes cites poden no estar 100% correctes.