OKSHA, R. K. <br/><br/>
AUDYOGIK MANOVIGYAN 

 - NEW DELHI  AGARWAL PUBLICATION 
 - 496p. 
<br/><br/> 1793 
<br/><br/><label>ISBN: </label> 150 
<br/><br/><label>Dewey Class. No.: </label>158.7 OKS R