"Upkar, " <br/><br/>
Ugc-Net/jrf/set Library and Information Science 

 - \\201300ENGGPSX 
 - Upkar   2013  Agra  
 - 436p.  
<br/><br/> includes index and biblioraphy 
<br/><br/><label>ISBN: </label>9.79E+12