kumar,  krishna <br/><br/>
Reference Service (4th Ed.)   

 - 4th Ed. 
 - New Delhi:  Vikas Publishing House;  1994. 
 - 431p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library Science, Reference Service
<br/><br/><label>Dewey Class. No.: </label>025.52 Kum-Ref