William Shakespeare, Edmond Malone (1821). “The Plays and Poems of William Shakespeare: With the Corrections and Illustrations of Various Commentators: Comprehending a Life of the Poet, and an Enlarged History of the Stage”, p.328
William Shakespeare (2013). “The Wars of the Roses In Plain and Simple English: Includes Henry VI Parts 1 - 3 & Richard III, Richard II, Henry IV Parts 1 and 2, and Henry V”, p.685, BookCaps Study Guides