Pushpa Dhyani <br/><br/>
Classifying with Dewy Decimal Classification (Ed. 19 and  20) 
by Pushpa Dhyani 
 - New Delhi  Ess Ess Publications  2002 
<br/><br/><label>ISBN: </label>8170003261 
<br/><br/><label>Dewey Class. No.: </label>025.431 PUS/CLA