Prehispanic Chiefdoms in the Valle De La Plata / Cacicazgos Prehispanicos del Valle de La Plata: 5 - Tapa blanda

"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/