Bibliography

Bennett, J. G.
General Systematics, from Systematics, Vol. 1, no. 1; June 1963, reprinted 1997.
Elementary Systematics (A Tool for Understanding Wholes), Santa Fe, New Mexico: Bennett Books, 1993. [ISBN: 0-9621901-5-2]
Enneagram Studies, York Beach, Maine: Samuel Weiser, Inc., 1983. [ISBN: 0-87728-544-6]

Blake, A. G. E.
The Intelligent Enneagram, Boston & London: Sahmbhala, 1996. [ISBN: 1-57062-213-2]

Conway, John H. and Richard K. Guy
The Book of Numbers, New York: Copernicus/Springer-Verlag. 1996. [ISBN: 0-387-97993-X]

Fuller, R. Buckminster in collaboration with E. J. Applewhite
Synergetics (Explorations in the Geometry of Thinking), New York: MacMillan Publishing Co., Inc. 1975. [ISBN: 0-02-541870-X]
Synergetics 2 (Further Explorations in the Geometry of Thinking), New York: MacMillan Publishing Co., Inc. 1979. [ISBN: 0-02-541880-7]

Schneider, Michael S.
A Beginner's Guide to Constructing the Universe (The Mathematical Archetypes of Nature, Art, and Science), New York: HarperCollins, 1995. [ISBN: 0-06-092671-6]