APA (7th ed.) Citation

Bach, J. S., David, F., & Hermann, F. (1948). Six sonatas for viola and piano. International Music.

Chicago Style (17th ed.) Citation

Bach, Johann Sebastian, Ferdinand David, and Friedrich Hermann. Six Sonatas for Viola and Piano. New York: International Music, 1948.

MLA (9th ed.) Citation

Bach, Johann Sebastian, et al. Six Sonatas for Viola and Piano. International Music, 1948.