Walter Lippmann, Clinton Rossiter, James Lare (1982). “The Essential Lippmann: A Political Philosophy for Liberal Democracy”, p.500, Harvard University Press
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.15, Oxford University Press on Demand