TY  - MUSIC
AU  - Verdi,Giuseppe
AU  - Somma,Antonio
TI  - Un ballo in maschera =: (A masked ball) opera in three acts. 
T2  - G. Schirmer opera score editions; ed.2233
PY  - 1957///]
CY  - New York
PB  - G. Schirmer
KW  - Operas
ER  -