Olmec lithic economy at San Lorenzo / by Hirth, Kenn, Cyphers, Ann

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Paisaje político rural y modos de trabajo líticos en Tepetitlán, Hidalgo / by Castillo Bernal, Stephen

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Obsidian across the Americas compositional studies conducted in the elemental analysis facility at the Field Museum of Natural History

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Obsidian : geology and archaeology in the North American southwest / by Shackley, M. Steven

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The Obsidian Cliff Plateau, prehistoric lithic source, Yellowstone National Park, Wyoming / by Davis, Leslie B.

Obsidian reflections symbolic dimensions of obsidian in Mesoamerica / by Carballo, David M., Levine, Marc N.

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Obsidian reflections : symbolic dimensions of obsidian in Mesoamerica / by Carballo, David M., Levine, Marc N.

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The prehistory of the Tuxtlas / by Santley, Robert S.

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