1. Sieden, L. S., Buckminster Fuller’s Universe, Plenum Press, New York, 1989.
2. Hargittai, I., Conversation with Ed Applewhite, Washington, DC, 1996, unpublished records.
3. Fuller, R. B., Synergetics: Explorations in the Geometry of Thinking, Macmillan, New York, 1975.
4. Mackay, A. L., A Dictionary of Scientific Quotations, Adam Hilger, Bristol, 1991, p. 12.
5. Fuller, Synergetics, pp. 517–518.