Meyerbeer, G., Scribe, E., Delavigne, G., & Oxenford, J. (1870). Roberto il diavolo: Opera in five acts. Boosey.
Lua i Stíl Chicago (17ú heag.)Meyerbeer, Giacomo, Eugène Scribe, Germain Delavigne, agus John Oxenford. Roberto Il Diavolo: Opera in Five Acts. London ; New York: Boosey, 1870.
Lua MLA (8ú heag.)Meyerbeer, Giacomo, et al. Roberto Il Diavolo: Opera in Five Acts. Boosey, 1870.
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