Sehgal,R L. <br/><br/>
An introduction to UDC 

 - 1st Ed. 
 - New Delhi  Ess Ess Publication  1994 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Library and Information Science
<br/><br/><label>Dewey Class. No.: </label> / SE-U