<?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/">DESTILACION DESTRUCTIVA</topic></authority><related type="narrower"><topic>ACEITES MINERALES</topic></related><related type="narrower"><topic>ACEITES Y GRASAS</topic></related><related type="narrower"><topic>CRAQUEO</topic></related><related type="narrower"><topic>PETROLEO</topic></related><related type="other"><topic>PRODUCTOS DE ALQUITRAN DE HULLA</topic></related><related type="other"><topic>CARBONIZACION</topic></related><related type="other"><topic>GAS</topic></related><related type="broader"><topic>QUIMICA TECNICA</topic></related><variant type="other"><topic>Destilación seca</topic></variant></mads>