<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>2908</termId><termName>COMBUSTIBLES FOSILES</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>Vocabulario Latinoamericano de Ciencias Sociales</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>COMBUSTIBLES FOSILES</termSortkey><termCreatedDate>2012-03-26 21:57:16</termCreatedDate><relation><relationType>BT</relationType><termId>2858</termId><termName>COMBUSTIBLES</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>2828</termId><termName>MINERALES NO METALIFEROS</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>5376</termId><termName>ENERGIA</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>397</termId><termName>CARBON</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>2920</termId><termName>GAS DE ALUMBRADO</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>2922</termId><termName>GAS NATURAL</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>2928</termId><termName>ACEITES MINERALES</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>4901</termId><termName>TURBA</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>4388</termId><termName>RECURSOS NO RENOVABLES</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>4497</termId><termName>LLUVIA ACIDA</termName><termType>PT</termType></relation></term>  </Zthes>