APA (7th ed.) Citation

Beethoven, L. v., & Nicholson, L. Klavierstück in B flat major (WoO 60).

Chicago Style (17th ed.) Citation

Beethoven, Ludwig van, and Linda Nicholson. Klavierstück in B Flat Major (WoO 60).

MLA (9th ed.) Citation

Beethoven, Ludwig van, and Linda Nicholson. Klavierstück in B Flat Major (WoO 60).

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