APA (7th ed.) Citation

Chopin, F., & Pressler, M. Nocturne in C sharp minor, op. posth.

Chicago Style (17th ed.) Citation

Chopin, Frédéric, and Menahem Pressler. Nocturne in C Sharp Minor, Op. Posth.

MLA (9th ed.) Citation

Chopin, Frédéric, and Menahem Pressler. Nocturne in C Sharp Minor, Op. Posth.

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