Sirohi, R.S.. <br/><br/>
Course of Experiments with He-Ne Laser /  
by R.S. Sirohi. 
 - 1st ed /  
 - New Delhi :   Wiley Eastern Ltd.. 
 - p.103,viii :  
<br/><br/><label>ISBN: </label>0-85226-737-1 
<br/><br/><label>Dewey Class. No.: </label>C5:5