Ralph Waldo Emerson, Robert Ernest Spiller, Alfred Riggs Ferguson, Joseph Slater, Jean Ferguson Carr (1971). “The Collected Works of Ralph Waldo Emerson: Nature, addresses, and lectures”, p.9, Harvard University Press
Joseph Addison, Thomas Tickell (1765). “Rosamond. Cato. The drummer, or The haunted house. The late trial and conviction of Count Tariff. The Whig-Examiner. The lover”, p.80
John Milton, Elijah Fenton, John GILLIES (D.D., Minister of the College Church, Glasgow.) (1793). “Milton's Paradise Lost illustrated with Texts of Scripture, by John Gillies ... Second edition, with additions. (The Life of Mr. John Milton [by Elijah Fenton].).”, p.144