@inbook {, title = {Obsidian exchange, economic stratification, and the evolution of complex society in the Basin of Mexico}, booktitle = {Trade and Exchange in Early Mesoamerica}, year = {1984}, note = {edited by Kenneth G. Hirth.ill. ; 26 cm.Includes index.}, pages = {43-86}, publisher = {University of New Mexico Press}, organization = {University of New Mexico Press}, address = {Albuquerque}, keywords = {Guatemala Antiquities., Indians of Central America Guatemala Antiquities, Indians of Central America Guatemala Commerce, Indians of Mexico Antiquities, Indians of Mexico Commerce, Mexico Antiquities.}, isbn = {0826306896}, author = {Santley, Robert S.}, editor = {Hirth, Kenneth G.} }