Mangal S K <br/><br/>
Audio visual education 

 - 2 rev 
 - New Delhi, India  Arya Book Depot  2001 
 - 274p 
<br/><br/><label>ISBN: </label>81-7063-134-3 
<br/><br/><label>Source: </label>TextBook 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching Aids