Offenbach, J., Amcotts, V., Meilhac, H., & Halévy, L. (1860). Fair Helen: A comic opera in three acts. s.n..
Lua i Stíl Chicago (17ú heag.)Offenbach, Jacques, Vincent Amcotts, Henri Meilhac, agus Ludovic Halévy. Fair Helen: A Comic Opera in Three Acts. [S.l.: s.n., 1860.
Lua MLA (8ú heag.)Offenbach, Jacques, et al. Fair Helen: A Comic Opera in Three Acts. s.n., 1860.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.