GPH Panel of Experts <br/><br/>
Oscillation and waves 

 - New Delhi  Gully Baba Publications 
 - 230p. 
<br/><br/> 59208 
<br/><br/><label>ISBN: </label>9789386276223  250 
<br/><br/><label>Dewey Class. No.: </label>530.124 PUB G