Krishan Kumar <br/><br/>
Reference Service 

 - 5 ed. 
 - NewDelhi  :  Vikas Publishing House,  2007 
 - 446p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reference Service-- Information Service-- Sources of Information-- User Education-- CAS-- SDI
<br/><br/><label>Dewey Class. No.: </label>25.52  / KRI-R