APA-referens (7:e uppl.)

Verdi, G. (2004). Verdi's a masked ball. Opera Journeys Publishing.

Chicago-referens (17:e uppl.)

Verdi, Giuseppe. Verdi's a Masked Ball. Coral Gables, FL: Opera Journeys Publishing, 2004.

MLA-referens (9:e uppl.)

Verdi, Giuseppe. Verdi's a Masked Ball. Opera Journeys Publishing, 2004.