1. 1959.The Complete Prose Works of John Milton, 198New Haven: Yale University Press. The words are Ernest Sirluck's from the Introduction to volume 2 of, cited hereafter parenthetically in text as Yale Prose
2. Masson, David. 1881.The Life of John Milton ., Vol. 1, 265–6. 272London: Macmillan.
3. Tillyard, E.M.W. 1964.Studies in Milton, 113–36. London: Chatto & Windus. esp. 119;
4. Tillyard. 1966.Milton, rev. ed., 12–16. London: Chatto & Windus.