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

 - 4th ed.  
 - New Delhi   Vikas publishing house  2014 
 - 560 p 
<br/><br/><label>ISBN: </label>9780706986389 
<br/><br/><label>Subjects--Topical Terms: </label><br/>New Delhi 
<br/><br/><label>LC Class. No.: </label>Z 696 .A4  K74/