APA-viite (7. p.)
ebrary, Inc, Fisher, B. D., Piave, F. M., Hugo, V., & Verdi, G. (2011). Ernani: A dramma lirico (lyric drama) in Italian in four parts : premiere, Teatro la Fenice, Venice, March 9, 1844. Opera Journeys Pub..
Chicago-viite (17. p.)
ebrary, Inc, Burton D. Fisher, Francesco Maria Piave, Victor Hugo, ja Giuseppe Verdi. Ernani: A Dramma Lirico (lyric Drama) in Italian in Four Parts : Premiere, Teatro La Fenice, Venice, March 9, 1844. [Boca Raton, Fla.]: Opera Journeys Pub., 2011.
MLA-viite (9. p.)
ebrary, Inc, et al. Ernani: A Dramma Lirico (lyric Drama) in Italian in Four Parts : Premiere, Teatro La Fenice, Venice, March 9, 1844. Opera Journeys Pub., 2011.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.