CHOUDHARY PRABHAT <br/><br/>
A STUDY OF WAVES 

 - 1st Ed. 
 -  GREEN LEAF PUBLICATION   2013 
<br/><br/><label>ISBN: </label>978-93-82105-50-3 
<br/><br/><label>Dewey Class. No.: </label>531.32  / CHO/A