APA (7th ed.) Citation

Beethoven, L. v., Sitt, H., & Peters, C. F. (1880). Symphonie. C. F. Peters.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van, Hans Sitt, and C. F. Peters. Symphonie. Leipzig: C. F. Peters, 1880.

MLA (9th ed.) Citation

Beethoven, Ludwig van, et al. Symphonie. C. F. Peters, 1880.