Small-scale mining in the developing countries. 

 - New York,  United Nations,  1972. 
 - [United Nations. Document]  ST/ECA/155 .
 - Document (United Nations) ;  ST/ECA/155 .
<br/><br/> "United Nations publication. Sales no.: E.72.II.A.4." 
<br/><br/>Bibliography: p. 158-166. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>LCCN: </label>73154202 //r852 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineral industries -- Developing countries.--Mineral industries -- Developing countries.
<br/><br/><label>LC Class. No.: </label>JX1977  / .A2 ST/ECA/155 
<br/><br/><label>Dewey Class. No.: </label>300/.8 s  338.2/09172/4