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

 - 5th ed. 
 - Noida  Vikas Publishing House  2020 
 - x, 446 p. 
<br/><br/> 4222 23/12/2021 IF22/1057 28/12/2021 Main Budget 
<br/><br/><label>ISBN: </label> RS 465.00 
<br/><br/><label>Dewey Class. No.: </label>025.52 K898R(5)