REDDY, V.Venugopal. <br/><br/>
The world of open and distance learning 

 - New Delhi.  Vikas pub. House pvt. Ltd.  2000 
 - xxii,496p. 
<br/><br/><label>ISBN: </label>81-7649-155-1 
<br/><br/><label>Dewey Class. No.: </label>374.4