{\rtf1\ansi\deff0\deftab360 {\fonttbl {\f0\fswiss\fcharset0 Arial} {\f1\froman\fcharset0 Times New Roman} {\f2\fswiss\fcharset0 Verdana} {\f3\froman\fcharset2 Symbol} } {\colortbl; \red0\green0\blue0; } {\info {\author Biblio}{\operator }{\title Biblio RTF Export}} \f1\fs24 \paperw11907\paperh16839 \pgncont\pgndec\pgnstarts1\pgnrestart Hughes, R. E., & Bettinger R. L. (1984).\'a0\'a0Obsidian and Prehistoric Sociocultural Systems in California. (DeAtley, Suzanne P., Findlow, Frank J., Ed.).\ul Exploring the Limits: Frontiers and Boundaries in Prehistory. 223,\ul0 153-.\par \par }