Singla; Rakesh Kumar <br/><br/>
Waves and optics   English 

 - 6th rev.ed. 
 - Jalandhar  Modern publishers  2017 
 - 241+pg 
<br/><br/><label>Subjects--Geographic Terms: </label><br/>Physics
<br/><br/><label>Dewey Class. No.: </label>535 S64W