Krishan Kumar <br/><br/>
Reference services 

 - 04th ed 
 - New Delhi<br/>  Vikas publishing House  1991 
 - 431p 
<br/><br/><label>ISBN: </label>0706964306 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library and information science
<br/><br/><label>Dewey Class. No.: </label>025.5  / KUM