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mads.xsd"><authority><topic authority="http://bibliotesauro.aecid.es/vocab/">Clases sociales de America</topic></authority><related type="narrower"><topic>Aristocracia de America</topic></related><related type="narrower"><topic>Clase media de America</topic></related><related type="narrower"><topic>Clase obrera de America</topic></related><related type="narrower"><topic>Clases sociales de Centroamerica</topic></related><related type="narrower"><topic>Clases sociales de Estados Unidos</topic></related><related type="narrower"><topic>Clases sociales de Iberoamerica</topic></related><related type="narrower"><topic>Clases sociales del Caribe</topic></related><related type="narrower"><topic>Elites de America</topic></related><related type="narrower"><topic>Empresarios (America)</topic></related><related type="narrower"><topic>Intelectuales (America)</topic></related><related type="broader"><topic>Estructura social de America</topic></related><related type="broader"><topic>Clases sociales</topic></related></mads>