APA (7th ed.) Citation

Mozart, W. A., Beethoven, L. v., & Schumann, R. (1990). Mozart/Beethoven/Schumann. Digital Concerto.

Chicago Style (17th ed.) Citation

Mozart, Wolfgang Amadeus, Ludwig van Beethoven, and Robert Schumann. Mozart/Beethoven/Schumann. [Belgium]: Digital Concerto, 1990.

MLA (9th ed.) Citation

Mozart, Wolfgang Amadeus, et al. Mozart/Beethoven/Schumann. Digital Concerto, 1990.