Deepmala Nigam <br/><br/>
Practical Universal Classification/ 
by Deepmala Nigam 
 - 3rd.(1961) 
 - New Delhi:  2024. 
 - 111p. 
<br/><br/><label>ISBN: </label>9789392594823 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classification-UDC practical
<br/><br/><label>Dewey Class. No.: </label>025.432 DEE/PRA