Years of achievement   mines & metals 

 - NA  NA NA          1978 
 - 12p.  cm. 
<br/><br/><label>Standard No.: </label>90747 
<br/><br/><label>Source: </label> Textbook 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINES AND MINERAL RESOURCES
<br/><br/><label>Dewey Class. No.: </label>HX, L8