Recent advances in mining and processing of low-grade and submarginal mineral deposits 

 -  1976 
 - viii,192p.  cm. 
<br/><br/><label>Standard No.: </label>49350 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minig engineering
<br/><br/><label>Dewey Class. No.: </label>HZ, L6