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

 - New Delhi  Vikas Publishing House      1979 
 - xii,510p.  cm. 
<br/><br/><label>Standard No.: </label>120361 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>2:51, L9