Bellini, V., West, W., & Romani, F. (1840). Norma: A lyric tragic opera in two acts (Duncombe's ed.). Printed and published by J. Duncombe.
Lua i Stíl Chicago (17ú heag.)Bellini, Vincenzo, W. West, agus Felice Romani. Norma: A Lyric Tragic Opera in Two Acts. Duncombe's ed. London: Printed and published by J. Duncombe, 1840.
Lua MLA (8ú heag.)Bellini, Vincenzo, et al. Norma: A Lyric Tragic Opera in Two Acts. Duncombe's ed. Printed and published by J. Duncombe, 1840.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.