<?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="https://confrides.cpd.ua.es/tematres/vocab/">Agua subterránea</topic></authority><related type="other"><topic>Geografía física</topic></related><related type="other"><topic>Hidrogeología</topic></related><related type="other"><topic>Hidrología kárstica</topic></related><related type="other"><topic>Suelos - Humedad</topic></related><related type="broader"><topic>Área 11. Hidrología general</topic></related><related type="broader"><topic>Área 01. Hidrología</topic></related><related type="broader"><topic>Área 02. Agua y medio ambiente</topic></related><related type="broader"><topic>Area 03. Geografía general física</topic></related><variant type="other"><topic>Aguas subterráneas</topic></variant><variant type="other"><topic>Capas acuíferas</topic></variant> <note type="history" xml:lang="">Se puede usar con un subencabezamiento geográfico. </note> <note type="source" xml:lang="es">&lt;p&gt;&lt;strong&gt;CDU&lt;/strong&gt;: 551.444&lt;br /&gt;&lt;strong&gt;CDU&lt;/strong&gt;: 556.32&lt;br /&gt;&lt;strong&gt;CDU&lt;/strong&gt;: 631.432&lt;/p&gt; </note></mads>