Cita APA (7a ed.)

Smith, S. Un ballo in maschera / Sydney Smith op. 10.

Cita Chicago Style (17a ed.)

Smith, Sydney. Un Ballo in Maschera / Sydney Smith Op. 10. Mayence : B. Schott's Söhne, s.a.

Cita MLA (8a ed.)

Smith, Sydney. Un Ballo in Maschera / Sydney Smith Op. 10.