Oscar Wilde (2013). “The Picture of Dorian Gray: The Story of a Fashionable Young Man Who Sells His Soul for Eternal Youth and Beauty (Beloved Books Edition)”, p.73, Lulu Press, Inc
Oscar Wilde (1956). “Annotated The Importance of Being Earnest: A Trivial Comedy for Serious People with English Grammar Exercises: by Oscar Wilde (Author), Robert Powell (Editor)”, p.72, Powell Publications, LLC
Oscar Wilde, Russell Jackson, Joseph Bristow, Ian Small (2000). “The Complete Works of Oscar Wilde: The picture of Dorian Gray : the 1890 and 1891 texts”, p.14, Oxford University Press on Demand
Oscar Wilde (2013). “The Picture of Dorian Gray: The Story of a Fashionable Young Man Who Sells His Soul for Eternal Youth and Beauty (Beloved Books Edition)”, p.130, Lulu Press, Inc
Oscar Wilde (1997). “Collected Works of Oscar Wilde: The Plays, the Poems, the Stories and the Essays Including De Profundis”, p.544, Wordsworth Editions
Oscar Wilde (1997). “Collected Works of Oscar Wilde: The Plays, the Poems, the Stories and the Essays Including De Profundis”, p.205, Wordsworth Editions
Oscar Wilde (2017). “The Picture of Dorian Gray (English French Edition illustrated): Le Portrait de Dorian Gray (Anglais Français édition illustré)”, p.61, Clap Publishing, LLC.