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.17, Lulu Press, Inc
BookCaps, Johann Wolfgang von Goethe (2012). “Faust in Plain and Simple English: First Part of the Tragedy: (A Modern Translation and the Original Version): BookCaps Study Guide”, p.163, BookCaps Study Guides