THE OBSIDIAN AND CERAMICS OF THE PUUC REGION: CHRONOLOGY, LITHIC PROCUREMENT, AND PRODUCTION AT XKIPCHE, YUCATAN, MEXICO.Published in:Ancient Mesoamerica, 2011, v. 22, n. 1, p. 135, doi. 10.1017/S0956536111000113By:Braswell, Geoffrey E.;Paap, Iken;Glascock, Michael D.Publication type:Article