APA (7th ed.) Citation

Roussel, A., & Ibert, J. (1950). String quartet in D major, op. 45. Westminster.

Chicago Style (17th ed.) Citation

Roussel, Albert, and Jacques Ibert. String Quartet in D Major, Op. 45. New York, N.Y.: Westminster, 1950.

MLA (9th ed.) Citation

Roussel, Albert, and Jacques Ibert. String Quartet in D Major, Op. 45. Westminster, 1950.