Oscar Wilde, Russell Jackson, Ian Small (2000). “The Complete Works of Oscar Wilde: De profundis, "Epistola : in carcere et vinculis"”, p.170, Oxford University Press on Demand
Oscar Wilde, Peter Raby (2008). “The Importance of Being Earnest and Other Plays: Lady Windermere's Fan; Salome; A Woman of No Importance; An Ideal Husband; The Importance of Being Earnest”, p.151, Oxford Paperbacks