1. Jacques Perriault, La Logiquede l’Usage. Paris: L’Harmattan, 1989.
2. Thomas P. Hughes, Human-Built World: How to Think about Technology and Culture. Chicago, IL: The University of Chicago Press, 2004.
3. Sharp, Button, K., and Deadman, D., “The Economics of Tolled Road Crossings,” Journal of Transport Economics and Policy, 20(2), May 1986, pp. 255–274.
4. D. Hokanson. The Lincoln Highway: Main Street across America. Iowa City: University of Iowa Press, 1999.
5. The Lincoln Highway Association, The Lincoln Highway: The Story of the Crusade that Made Transportation History. New York: Dodd, Mead & Company, 1935.