Small-scale mining in the developing countries 

 - New  York United Nations U S A    1972 
 - "vi,171p."  cm. 
<br/><br/><label>Standard No.: </label>86063 
<br/><br/><label>Source: </label> Reference Collections 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Industrial Economics
<br/><br/><label>Dewey Class. No.: </label>"X91(HZ).1(X).N7, L2/UN"