William Shakespeare (2013). “Making Sense of Measure for Measure! a Students Guide to Shakespeare's Play (Includes Study Guide, Biography, and Modern Retelli”, p.87, BookCaps Study Guides
William Shakespeare (1867). “The Pictorial edition of the works of Shakspere, ed. by C. Knight. [8 vols., including a vol. entitled William Shakspere, by C. Knight]. [8 vols. The vol. containing the biogr. is of the 3rd ed.].”, p.19
John Milton, Henry John Todd (1852). “The Poetical Works of John Milton: With Notes of Various Authors; and with Some Account of the Life and Writings of Milton, Derived Principally from Original Documents in Her Majesty's State-paper Office”, p.152