Optimal exploitation of solid mineral resources  

 - Calcutta  Institution of Engineers India         1984 
 - various pagination.  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Minings
<br/><br/><label>Dewey Class. No.: </label>X9(HZ).1.N8, M4.1-.4