Subrahmanyam, N Lal, Brij <br/><br/>
Textbook of Sound 

 - New Delhi  Vikas Publishing House  1974 
 - p.273 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sound<br/>Wave Motion
<br/><br/><label>Dewey Class. No.: </label>534 S941T