Copper and copper products: an overview of world production, consumption and trade 

 - Géneva  International Trade Centre UNCTAD/GATT  1990 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA<br/>COBRE<br/>PRODUCCION DE COBRE<br/>MERCADO INTERNACIONAL
<br/><br/><label>Universal Decimal Class. No.: </label>622