(1980). Complete string quartets: Transcribed for four-hand piano. Bd. 1.2 / transcription by Hugo Ulrich and Robert Wittmann (Klavierpartitur.). Dover Publications.
Chicago-Zitierstil (17. Ausg.)Complete String Quartets: Transcribed for Four-hand Piano. Bd. 1.2 / Transcription by Hugo Ulrich and Robert Wittmann. Klavierpartitur. New York, N.Y.: Dover Publications, 1980.
MLA-Zitierstil (8. Ausg.)Complete String Quartets: Transcribed for Four-hand Piano. Bd. 1.2 / Transcription by Hugo Ulrich and Robert Wittmann. Klavierpartitur. Dover Publications, 1980.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.