APA (7th ed.) Citation

Beethoven, L. v., & Altmann, W. Trio for violin, viola and violoncello, D major, op. 9/2: D-Dur = Ré majeur. Eulenburg.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van, and Wilhelm Altmann. Trio for Violin, Viola and Violoncello, D Major, Op. 9/2: D-Dur = Ré Majeur. London: Eulenburg.

MLA (8th ed.) Citation

Beethoven, Ludwig van, and Wilhelm Altmann. Trio for Violin, Viola and Violoncello, D Major, Op. 9/2: D-Dur = Ré Majeur. Eulenburg.