असली: Tchaikovsky, Piotr Ilitch. Swan Lake. ballet. Op.20, TH 12. Tchaikovsky, Piotr Ilitch. Piano solo. Langer, Eduard. Main sheet music.
अनुबाद: Tchaikovsky, पिओट्र Ilitch. Tchaikovsky, पिओट्र Ilitch. पियानो सोलो. लैंगर, एडवर्ड. Op.20, गु 12. Pages 1-80.