Krishan Kumar <br/><br/>
ory of classification 

 - 4th Revised Edition 
 - New Delhi  Vikas  1989 
 - 560p. 
<br/><br/><label>ISBN: </label> RS 45.00 
<br/><br/><label>Source: </label> RS 45.00 
<br/><br/><label>Dewey Class. No.: </label>025.42 KRI