International Convention & Trade Exhibition  March 5-10, 2000, Toronto, Canadá. Mining Millennium 2000 
International Convention & Trade Exhibition 
 - Toronto  2000 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINERIA<br/>COMERCIO
<br/><br/><label>Universal Decimal Class. No.: </label>622.3