John Milton (1824). “The Poetical Works of John Milton: With Notes of Various Authors, Principally from the Edition of Thomas Newton, Charles Dunster, and Thomas Warton, to which is Prefixed, Newton's Life of Milton”, p.154
John Milton (1801). “The Poetical Works of John Milton: With the Principal Notes of Various Commentators. To which are Added Illustrations, with Some Account of the Life of Milton”, p.160