Minerals Yearbook 1990. Volume III: Mineral industries of Latin America and Canada  area reports: international 
U.S. Bureau of mines. 
 - Washington  Government printing office  1992 
<br/><br/><label>ISBN: </label>0160381827 
<br/><br/><label>Subjects--Corporate Names: </label><br/>U.S. Bureau of mines.
<br/><br/><label>Subjects--Topical Terms: </label><br/>minerales<br/>metales<br/>anuario
<br/><br/><label>Subjects--Geographic Terms: </label><br/>América Latina<br/>Canadá
<br/><br/><label>Universal Decimal Class. No.: </label>549