Mineral processing in developing countries. 

 - New  York United Nations USA      1980 
 - 143p.  cm. 
<br/><br/><label>Standard No.: </label>87574 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>"X9(HZ).1(X).N7, M0/UN"