Neil Baldwin. Edison: Inventing the Century (Chicago: University of Chicago Press, 2001).
129
Norman Bel Geddes. Miracle in the Evening: An Autobiography, ed. William Kelley, (Garden City: Doubleday & Company, 1960), p. 347. Donald Albrecht, ed., Norman Bel Geddes Designs America (New York: Abrams, 2012), 220.