Sinha, R. K. <br/><br/>
Mineral economics : a text book for University  students 
<label>/ by </label> Sinha, R. K. 
<label>;</label> Sharma, N. L. 
 - New Delhi  Oxford and IBH Pub. House  1970 
 - xvi,317p.  ill  22 cm. 
<br/><br/>SR 
<br/><br/><label>Dewey Class. No.: </label>553  / S