Piave, F. M., Fisher, B. D., Verdi, G., & Hugo, V. (2005). Verdi's Rigoletto. Opera Journeys.
Lua i Stíl Chicago (17ú heag.)Piave, Francesco Maria, Burton D. Fisher, Giuseppe Verdi, agus Victor Hugo. Verdi's Rigoletto. Miami: Opera Journeys, 2005.
Lua MLA (9ú heag.)Piave, Francesco Maria, et al. Verdi's Rigoletto. Opera Journeys, 2005.
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