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Gardner, M. Time Travel and Other Mathematical Bewilderments. New York: W. H. Freeman and Co., 1988.

Smith, M. The Mesoamerican Urban Landscape from Teotihuacan to the Aztecs. Paper presented at the conference, “Archeology of Complex Societies: Centripetal and Centrifugal Forces,” October 21, 1995, California State University, San Bernardino.

Purdy, J. “Ancient Voices Speak Again in Carthage.“ Research Reporter. Vol. 25, No. 2 (Winter 1995). University of Georgia.

 

 

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