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

 - 2 
 - New Delhi  Vikas Publishing House Pvt Ltd  1974 
 - 281 
<br/><br/><label>ISBN: </label>0706998170 
<br/><br/><label>Publisher. No.: </label> Gangaram Book Bureau 
<br/><br/><label>Subjects--Personal Names: </label> Physics 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics