APA (7th ed.) Citation

Mozart, W. A., Beethoven, L. v., Klingler, K., & Klingler, M. (1955). Beethoven, Sonate A-Dur. Mozart, Sonate C-Dur.

Chicago Style (17th ed.) Citation

Mozart, Wolfgang Amadeus, Ludwig van Beethoven, Karl Klingler, and Margarethe Klingler. Beethoven, Sonate A-Dur. Mozart, Sonate C-Dur. 1955.

MLA (9th ed.) Citation

Mozart, Wolfgang Amadeus, et al. Beethoven, Sonate A-Dur. Mozart, Sonate C-Dur. 1955.