Teoría y Técnicas.

Carneiro, Robert L., A theory of the origin of the state. Science 169, No. 3947, 1970.

Carniero, Robert L., A reappraisal of the roles of technology and organization in the origin of civilization, American Antiquity 39 (2).

Flannery, Kent V., The cultural evolution of civilizations. Annual revie of ecological systems 3, 1972.

Flannery, Kent V., The early mesoamerican Village. Academic Press, New York, 1976.

Gifford, James C., The type variety method of ceramic classification as an indicator of cultural phenomena, American Antiquity 25 (3), 1960.

Phillips Philip, and James C. Gifford, A review the taxonomic nomenclature essential to ceramic analisys in archaeology. Peabody Museum, Harvard University Newsletter of the Southeastern Archaeological Conference, Vol. 7, Cambridge.

Shalins, Marchall D., Tribesmen, Prentice-Hall. Englewood Cliffs, USA, 1968.

Sanders, William T., The cultural ecology of the lowland Maya: A reevaluation. In the Classic Maya Collapse, edited by T. Patrick Culbert, University of New Mexico, Press, Albuquerque, 1973.

Sanders, William T., and Price, Barbara J., Mesoamerica: the evolution of a civilization. Random House, Inc. New York. 1968. Washington, D.C., USA, Dumbarton Oaks, october 18th, 1980,