Krishan Kumar <br/><br/>
Reference service 

 - 4th 
 - New Delhi  Vikash Publishing House  1982 
 - 431 
<br/><br/><label>ISBN: </label>0706986423 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Libray science<br/>Reference services (libraries)
<br/><br/><label>Dewey Class. No.: </label>025.52  / K898r