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Anthony P. Andrews , Frank Asaro , Helen V. Michel , Fred H. Stross , and Pura Cervera Rivero 1989 The Obsidian Trade at Isla Cerritos, Yucatan, Mexico. Journal of Field Archaeology 16:355–363.
Stephan F. de Borhegyi 1961 Shark's Teeth, Stingray Spines, and Shark Fishing in Ancient Mexico and Central America. Southwestern Journal of Anthropology 17:273–296.
David A. Freidel 1978 Maritime Adaptations and the Rise of Maya Civilizations: The View from Cerros, Belize. In Prehistoric Coastal Adaptations, edited by Barbara Voorhies and Barbara Stark , pp. 239–265. Academic Press, New York.
David A. Freidel 1979 Culture Areas and Interaction Spheres: Contrasting Approaches to the Emergence of Civilization in the Maya Lowlands. American Antiquity 44:36–54.
Elizabeth Graham , and David M. Pendergast 1989 Excavations at the Marco Gonzalez Site, Ambergris Cay, Belize, 1986. Journal of Field Archaeology 16:1–16.
Thomas H. Guderjan , James F. Garber , Herman A. Smith , Fred Stross , Helen V. Michel , and Frank Asaro 1989 Maya Maritime Trade and Sources of Obsidian at San Juan, Ambergris Cay, Belize. Journal of Field Archaeology 16:363–369.
Norman Hammond 1972 Obsidian Trade Routes in the Mayan Area. Science 178: 1092–1093.
Norman Hammond , Mary D. Neivens , and Garman Harbottle 1984 Trace Element Analysis of Obsidian Artifacts from a Classic Maya Residential Group at Nohmul, Belize. American Antiquity 49:815–820.
Paul F. Healy , Heather McKillop , and Bernetta Walsh 1984 Analysis of Obsidian from Moho Cay, Belize: New Evidence on Classic Maya Trade Routes. Science 225:414–417.
Frederick W. Lange 1971 Marine Resources: A Viable Subsistence Alternative for the Prehistoric Lowland Maya. American Anthropologist 73:619–639.
Frederick W. Lange , and F.M. Carty 1975 Adaptation of the Flotation Technique to Salt Water. Journal of Field Archaeology 2:119–123.
J. Jefferson MacKinnon , and Susan M. Kepecs 1989 Prehispanic Maya Saltmaking in Belize: New Evidence. American Antiquity 54:522–533.
Heather McKillop 1984 Prehistoric Maya Reliance on Marine Resources: Analysis of a Midden from Moho Cay, Belize. Journal of Field Archaeology 11:25–35.
Heather McKillop 1985 Prehistoric Exploitation of the Manatee in the Maya and Circum-Caribbean Areas. World Archaeology 16:337–353.
Heather McKillop 1995a Underwater Archaeology, Salt Production, and Coastal Maya Trade at Stingray Lagoon, Belize. Latin American Antiquity 6: 214–228.
Joyce Marcus 1983 Lowland Maya Archaeology at the Crossroads. American Antiquity 48:454–488.
William L. Rathje 1971 The Origin and Development of Lowland Classic Maya Civilization. American Antiquity 36:275–285.
Colin Renfrew 1977 Alternative Models for Exchange and Spatial Distribution. In Exchange Systems in Prehistory, edited by Timothy K. Earle and Jonathon E. Ericson , pp. 71–90. Academic Press, New York.
Prudence M. Rice 1984 Obsidian Procurement in the Central Peten Lakes Region, Guatemala. Journal of Field Archaeology 11:181–194.
Prudence M. Rice , Helen V. Michel , Frank Asaro , and Fred Stross 1985 Provenience Analysis of Obsidian from the Central Peten Lake Region, Guatemala. American Antiquity 50:591–604.
Harry J. Shafer , and Thomas R. Hester 1983 Ancient Maya Chert Workshops in Northern Belize, Central America. American Antiquity 48:519–543.
Payson Sheets , Kenneth Hirth , Fred Lange , Fred Stross , Frank Asaro , and Helen Michel 1990 Obsidian Sources and Elemental Analyses of Artifacts in Southern Mesoamerica and the Northern Intermediate Area. American Antiquity 55:144–158.
Payson D. Sheets , and Guy Muto 1972 Pressure Blades and Total Cutting Edge. Science 175:632–634.
Webster E. Shipley III, and Elizabeth Graham 1987 Petrographic Analysis and Preliminary Source Identification of Selected Stone Artifacts from Seibal and Uaxactun. Journal of Archaeological Science 14:367–383.
Raymond V. Sidrys 1976 Classic Maya Obsidian Trade. American Antiquity 41:449–464.
Raymond V. Sidrys 1977 Mass-Distance Measures for the Maya Obsidian Trade. In Exchange Systems in Prehistory, edited by Timothy K. Earle and Jonathon E. Ericson , pp. 91–107. Academic Press, New York.
Raymond V. Sidrys 1979 Supply and Demand Among the Classic Maya. Current Anthropology 20:594–597.
Fred H. Stross , H.R. Bowman , Helen V. Michel , Frank Asaro , and Norman Hammond 1978 Mayan Obsidian: Source Correlations for Southern Belize Artifacts. Archaeometry 20:83–93.