BRIJ LAL SUBRAHMANYAM N <br/><br/>
A TEXTBOOK OF SOUND 

 - 2nd Ed. 
 - NEW DELHI  Vikas Educational Books, New Delhi   2014 
<br/><br/><label>ISBN: </label>978-07069-9817-7 
<br/><br/><label>Dewey Class. No.: </label>534  / SUB/A