APA (7th ed.) Citation

Beethoven, L. v., Meinel, F., & Litsoukova, V. (1997). Zärtliche Liebe: WoO 123.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van, Friederike Meinel, and Viktoria Litsoukova. Zärtliche Liebe: WoO 123. 1997.

MLA (9th ed.) Citation

Beethoven, Ludwig van, et al. Zärtliche Liebe: WoO 123. 1997.