Defoe, Daniel. Robinson Crusoe. Philadelphia: G.W. Jacobs and Co., 1920.

Roberts, Gail. Atlas of Discovery. New York: Crown Publishers, 1973.

Verne, Jules. Le Tour du Monde en Quatre-Vingt Jours. Paris: Hetzel et C.ie, 1874.

Bly, Nellie. Around the World in Seventy-Two Days. New York: The Pictorial Weeklies Company, 1890.

Thicknesse, Philip. A Year’s Journey through France, and Part of Spain. London: Printed for W. Brown, 1789.

Fletcher Lummis, Charles. A Tramp across the Continent. New York: C. Scribner’s Sons, 1892.

Stevenson, Robert Louis. The Amateur Emigrant. Chicago: Stone and Kimball, 1895.

Gladding, Effie Price. Across the Continent by the Lincoln Highway. New York: Brentano’s, 1915.