Lua APA (7ú heag.)
Verdi, G., Piave, F. M., Hugo, V., & Fisher, B. D. (2002). Verdi's Rigoletto. Opera Journeys.
Lua i Stíl Chicago (17ú heag.)
Verdi, Giuseppe, Francesco Maria Piave, Victor Hugo, agus Burton D. Fisher. Verdi's Rigoletto. Coral Gables, Fla.: Opera Journeys, 2002.
Lua MLA (9ú heag.)
Verdi, Giuseppe, et al. Verdi's Rigoletto. Opera Journeys, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.