Henry David Thoreau (2017). “Journeys, Adventures & Life in Harmony with Nature – 6 Book Collection (Illustrated): Including Walden, A Week on the Concord and Merrimack Rivers, The Maine Woods, Cape Cod, A Yankee in Canada & Canoeing in the Wilderness - North American Highlands Series”, p.47, e-artnow
Edward Gibbon (2016). “THE HISTORY OF THE DECLINE AND FALL OF THE ROMAN EMPIRE (All 6 Volumes): From the Height of the Roman Empire, the Age of Trajan and the Antonines - to the Fall of Byzantium; Including a Review of the Crusades, and the State of Rome during the Middle Ages”, p.1209, e-artnow