Benjamin Disraeli, Edmund Gosse, Robert Arnot (1904). “The Works of Benjamin Disraeli, Earl of Beaconsfield, Embracing Novels, Romances, Plays, Poems, Biography, Short Stories and Great Speeches: Coningsby, v. 2. Selected speeches”
"The Boy Who Was Raised as a Dog: And Other Stories from a Child Psychiatrist's Notebook--What Traumatized Children Can Teach Us About Loss, Love, and Healing". Book by Bruce D. Perry and Maia Szalavit, 2006.