Incluye referencias bibliograficas

v. 1. The environmental context of human habitation / edited by Luisa Fernanda Herrera, Robert D. Drennan, Carlos A. Uribe -- v. 2. Ceramics--chronology and craft production / edited by Robert D. Drennan, Mary M. Taft, Carlos A. Uribe -- v. 3. The socioeconomic structure of Formative 3 communities / Luis Gonzalo Jaramillo E. -- v. 4. Vertical economy, interchange, and social change during the formative period / Dale W. Quattrin -- v. 5. Regional settlement patterns / edited by Robert D. Drennan.

Seven pottery types defining three Formative, two Regional Classic, and one Recent Phase were clustered based on mineralogy to estimate population growth and centralized control. Results imply elites were established several centuries prior to economic centralization"--Handbook of Latin American Studies, v. 57. http://www.loc.gov/hlas

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