Lee Child (2015). “The Essential Jack Reacher, Volume 2, 6-Book Bundle: 61 Hours, Worth Dying For, The Affair, A Wanted Man, Never Go Back, Personal”, p.633, Delacorte Press
Henry David Thoreau (2014). “Citizen Thoreau: Walden, Civil Disobedience, Life Without Principle, Slavery in Massachusetts, A Plea for Captain John Brown”, p.61, Graphic Arts Books