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.391
Samuel Taylor Coleridge (1849). “Notes and Lectures Upon Shakespeare and Some of the Old Poets and Dramatists: With Other Literary Remains of S. T. Coleridge”, p.169