@inbook {, title = {Ethnographic Models for Formative Exchange}, booktitle = {The Early Mesoamerican Village}, series = {Studies in archeology}, year = {1976}, note = {75013088 //r92edited by Kent V. Flannery.Includes bibliographies and index.}, pages = {286-292}, publisher = {Academic Press}, organization = {Academic Press}, address = {New York}, keywords = {Central America Antiquities., Extinct cities Central America, Extinct cities Mexico, Indians of Central America Antiquities, Indians of Mexico Antiquities, Mexico Antiquities.}, isbn = {0122598504}, author = {Pires-Ferreira, Jane W. and Flannery, Kent V.}, editor = {Flannery, Kent V.} }