APA aipamena

Verdi, G. (1957). Un ballo in maschera (A masked ball): Opera in three acts. G. Schirmer.

Chicago Style aipamena

Verdi, Giuseppe. Un Ballo in Maschera (A Masked Ball): Opera in Three Acts. New York: G. Schirmer, 1957.

MLA aipamena

Verdi, Giuseppe. Un Ballo in Maschera (A Masked Ball): Opera in Three Acts. G. Schirmer, 1957.

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