Small-scale mining:   A global overview  

 - Calcutta:   Mining, Geological and Metallurgical Institute of India,   1994 
 - viii, 372p. 
<br/><br/><label>ISBN: </label>81-204-0763-6 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Geology
<br/><br/><label>Universal Decimal Class. No.: </label>622(082.2)   / N4