Dollfus, Ruggero. Viaggio intorno al Globo di un luganese, Ottobre 1900 - Luglio 1901. Lugano: stabilimento tipografico Fratelli Traversa, 1902.

Tweedie, Ethel Brilliana. Women the World over. London: Hutchinson & co., 1914.

Thomas Cook Ltd. India, Burma, and Ceylon: Information for Travellers and Residents. London: T. Cook & Son, 1912.

Henry Boynton & Co. 13,000 Miles of Sight Seeing in Thirty Days. 1891.

Connell, James. Some Humorous Experiences of a Globe Trotter. Battle Creek, Mich.: Ellis Pub. Co., 1915.

Blunt, Anne. Voyage En Arabie. Pèlerinage an Nedjed, Berceau de La Race Arabe. Paris: Hachette, 1882.

Harvard Travellers Club. Handbook of Travel. Edited by Glover M. Allen and William Morris Davis. Cambridge: Harvard University Press, 1917.

American Airlines. American Airlines Scrapbook. 1962.

Thomas Cook. Programme and Itineraries of Cook’s Grand Excursions to Europe, Season 1881, Visiting All Chief Points of Interest in Ireland, Scotland, England, Holland, Belgium, Germany, Switzerland, Italy, France, Etc., Etc., Leaving New York by Cunard, Inman and Anchor Lines of Steamers, on April 27th, June 11th and July 2d, 1881, 1881.

Charton, Édouard, and Emilio Treves. Il Giro del mondo: giornale di viaggi, geografia e costumi, 8, 1867.

Union Pacific System. How to See California and Its Expositions in 1915. 1915.

Thomas Cook Ltd. Cook’s Tourists’ Handbook for Northern Italy. 1910.