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

 - New Delhi  Vikas Pub House  1978 
 - x,431 p. 
<br/><br/><label>ISBN: </label>0706943635 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic reference services (Libraries)<br/>Reference books<br/>Information Retrieval Services
<br/><br/><label>Dewey Class. No.: </label>025.52