{\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 Harris, O. (1985).\'a0\'a0Ecological duality and the role of the center: Northern Potos\'ed. (Masuda, Shozo, Shimada, Isumi, Morris, Craig, Ed.).\ul Andean Ecology and Civilization. \ul0 311-335.\par \par }