John Milton (2013). “Paradise Lost Simplified!: Includes Modern Translation, Study Guide, Historical Context, Biography, and Character Index”, p.109, BookCaps Study Guides
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.413
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.43