Sehgal, R. L. <br/><br/>
Introduction to universal decimal classification / 

 - Ess Ess publications :  New Delhi ,  1994. 
 - 266 p.  22cms 
<br/><br/><label>ISBN: </label>8170001668 
<br/><br/><label>Subjects--Index Terms: </label>Library Science Universal Decimal Classification