APA (7th ed.) Citation

Beethoven, L. v., Bülow, H. v., & Lebert, S. Sonatas for the piano. G. Schirmer.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van, Hans von Bülow, and Sigmund Lebert. Sonatas for the Piano. New York: G. Schirmer.

MLA (9th ed.) Citation

Beethoven, Ludwig van, et al. Sonatas for the Piano. G. Schirmer.