Verma Ajit Ram <br/><br/>
Anmol ratan heera  Ed by Vinita Singhal 

 - Delhi  CSIR India         1993 
 - 71p.  cm. 
<br/><br/><label>ISBN: </label>8172360770 
<br/><br/><label>Standard No.: </label>22945 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>MINES AND MINERAL RESOURCES
<br/><br/><label>Dewey Class. No.: </label>H191, 152N3