William Shakespeare, Samuel Johnson, George Steevens (1813). “The Plays of William Shakespeare: In Twenty-one Volumes, with the Corrections and Illustrations of Various Commentators, to which are Added Notes”, p.28
William Shakespeare (2013). “Second Tetralogy In Plain and Simple English: Includes Richard II, Henry IV Parts 1 and 2, and Henry V”, p.723, BookCaps Study Guides