Dr Ajit Kumar Sharma <br/><br/>
Textbook of modern physics 
Dr Ajit Kumar Sharma 
 - New delhi  Discovery Publishing house pvt, ltd  2011 
 - p.323.:ill.  Hbk 
<br/><br/><label>ISBN: </label>9878183568449 
<br/><br/><label>LC Class. No.: </label>QC 21.S4  / 2011