Krishan Kumar <br/><br/>
Theory of classification. 

 - New Delhi  Vikas Publishing House      1983 
 - 538p.  cm. 
<br/><br/><label>Standard No.: </label>120321 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>2:51, M3