Sehgal R. L. <br/><br/>
An introduction to universal decimal classification/ 
R. L. Sehgal. 
 - New Delhi :  Ess Ess ;  2004. 
 - 266. p.  23cm. 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>8170001668 (hbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification, Universal decimal.