Kumar, Krishan. <br/><br/>
Reference service / 
Krishan Kumar. 
 - 5th rev. ed. 
 - New Delhi :  Vikas Publishing House,  1982. 
 - x, 447 p. ;  21 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>0706986423 9780706986426 
<br/><br/><label>Subjects--Topical Terms: </label><br/>References services (Libraries).
<br/><br/><label>Dewey Class. No.: </label>025.52