<?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://AATesaurus.cultura.gencat.cat/aat/getty_es">[vidrio por composición u origen]</topic></authority><related type="narrower"><topic>vidrio de borosilicato</topic></related><related type="narrower"><topic>vidrio de sílice fundida</topic></related><related type="narrower"><topic>cristal del plomo</topic></related><related type="narrower"><topic>vidrio rubí</topic></related><related type="narrower"><topic>cristallo</topic></related><related type="narrower"><topic>vidrio blanco lechoso</topic></related><related type="narrower"><topic>vidrio de cal</topic></related><related type="narrower"><topic>vidrio de botellas</topic></related><related type="narrower"><topic>hialita</topic></related><related type="narrower"><topic>vidrio de uranio</topic></related><related type="narrower"><topic>vidrio de cobalto</topic></related><related type="narrower"><topic>vidrio de sulfuro de cadmio</topic></related><related type="narrower"><topic>cristal de bosque</topic></related><related type="narrower"><topic>smalt (traducció pendent)</topic></related><related type="narrower"><topic>opaque red glass (traducció pendent)</topic></related><related type="narrower"><topic>tektite (traducció pendent)</topic></related><related type="narrower"><topic>Libyan desert glass (traducció pendent)</topic></related><related type="narrower"><topic>nonlead glass (traducció pendent)</topic></related><related type="broader"><topic>vidrio</topic></related></mads>