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.52
John Milton, James Augustus St. John, Charles Richard Sumner (1872). “The Prose Works of John Milton ...: With a Preface, Preliminary Remarks, and Notes”, p.173