APA (7th ed.) Citation

Beethoven, L. v., & Backhaus, W. (1950). [Beethoven piano sonatas]. London.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van, and Wilhelm Backhaus. [Beethoven Piano Sonatas]. England: London, 1950.

MLA (9th ed.) Citation

Beethoven, Ludwig van, and Wilhelm Backhaus. [Beethoven Piano Sonatas]. London, 1950.