Jain, V.K. <br/><br/>
'O' level  Elective-1, Module-m1.1 

 - New Delhi  BPB Publications  2000 
 - 653p. 
<br/><br/><label>ISBN: </label>8176562092 
<br/><br/><label>Dewey Class. No.: </label>621.381952  / J20O