APA (7th ed.) Citation

Beethoven, L. v., Lehmann, L., & Ulanowsky, P. Wonne der Wehmut.

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van, Lotte Lehmann, and Paul Ulanowsky. Wonne Der Wehmut.

MLA (9th ed.) Citation

Beethoven, Ludwig van, et al. Wonne Der Wehmut.

Warning: These citations may not always be 100% accurate.