References
- Adams, Richard E. W. 1970 “Suggested Classic Period occupational specialization in the southern Maya lowlands” in Monographs and Papers in Maya Archaeology, Papers of the Peabody Museum of Archaeology and Ethnology, Harvard University, Vol. 61, William R. Bullard, Jr., editor, Cambridge, Massachusetts.
- Andrews IV, E. Wyllys, and Irwin Rovner 1973 Archaeological Evidence on Social Stratification and Commerce in the Northern Maya Lowlands, Middle American Research Institute, Tulane University Publication No. 31, New Orleans.
- Bordes, Francois 1961 Typologie du Paléolithique Ancien et Moyen, Publications de L'Institut de Préhistoire de L'Univesité de Bordeaux, Mémoire no. 1, Bordeaux, France.
- Eaton, Jack D. 1974 “Shell celts from coastal Yucatan, Mexico,” Texas Archeological Society, Bulletin 45, Austin.