APA (7th ed.) Citation

Chopin, F., & Horowitz, V. Nocturne Nr. 2 Es-Dur, op. 9, 2.

Chicago Style (17th ed.) Citation

Chopin, Frédéric, and Vladimir Horowitz. Nocturne Nr. 2 Es-Dur, Op. 9, 2.

MLA (9th ed.) Citation

Chopin, Frédéric, and Vladimir Horowitz. Nocturne Nr. 2 Es-Dur, Op. 9, 2.

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