<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">CONSERVACION DEL AGUA</topic></authority><related type="narrower"><topic>ABASTECIMIENTO DE AGUA</topic></related><related type="narrower"><topic>CONSERVACION DE CORRIENTES DE AGUA</topic></related><related type="narrower"><topic>CONSERVACION DE LAGOS</topic></related><related type="narrower"><topic>CONTROL DE CALIDAD DEL AGUA</topic></related><related type="narrower"><topic>DESARROLLO HIDRAULICO INTEGRADO</topic></related><related type="narrower"><topic>LABRANZA DE CONSERVACION</topic></related><related type="narrower"><topic>TERRAPLENES</topic></related><related type="broader"><topic>CONSERVACION DE LOS RECURSOS NATURALES</topic></related><related type="broader"><topic>CONTAMINACION</topic></related><related type="broader"><topic>LABRANZA DE CONSERVACION</topic></related><related type="broader"><topic>MANEJO DE CUENCAS HIDROGRAFICAS</topic></related><related type="broader"><topic>RESIDUOS INDUSTRIALES</topic></related><related type="broader"><topic>REUTILIZACION DEL AGUA</topic></related><related type="broader"><topic>SALUD PUBLICA</topic></related><variant type="other"><topic>Contaminación de ríos</topic></variant><variant type="other"><topic>Ríos--Contaminación</topic></variant><variant type="other"><topic>Agua contaminada</topic></variant><variant type="other"><topic>Contaminación de aguas</topic></variant></mads>