Jacobs, A., & Sadie, S. (1966). Great operas in synopsis. T. Y. Crowell.
Lua i Stíl Chicago (17ú heag.)Jacobs, Arthur, agus Stanley Sadie. Great Operas in Synopsis. New York: T. Y. Crowell, 1966.
Lua MLA (9ú heag.)Jacobs, Arthur, agus Stanley Sadie. Great Operas in Synopsis. T. Y. Crowell, 1966.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.