Kumar, Kirshan. <br/><br/>
Reference service 
/  Kirshan Kumar 
 - 4th ed. 
 - New Delhi  Vani educational books  1984 
 - x, 444 p. 
<br/><br/><label>ISBN: </label>0706925246 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Information service<br/>Reference services
<br/><br/><label>Dewey Class. No.: </label>025.52  / KUM