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[2] W.W. Rouse Ball and H.S.M. Coxeter, Mathematical Recreations and Essays, 11th ed., New York, 1938; (Dover reprint, 1960).

[3] H.S.M. Coxeter, Regular Polytopes, Macmillan, 1963, (Dover reprint, 1973).

[4] G. M. Ziegler, Lectures on Polytopes, Springer-Verlag, 1995.

[5] J. L. Cowley, Solid Geometry, 1787.

[6] S. Baer, Zome Primer, Zomeworks, P.O. Box 712, Albuquerque, New Mexico.

[8] D. Eppstein, "Zonohedra and Zonotopes," Mathematica in Education and Research, Vol. 5, No. 4, pp. 15-21, 1996.