Walter Bagehot, Norman St. John-Stevas (1959). “Walter Bagehot: A Study of His Life and Thought, Together with a Selection from His Political Writings”, London : Eyre & Spottiswoode
William Shakespeare (2013). “Second Tetralogy In Plain and Simple English: Includes Richard II, Henry IV Parts 1 and 2, and Henry V”, p.308, BookCaps Study Guides