The nature of educational technology / 
edited by V.K. Rao and R.S. Reddy. 
 - New Delhi :  Ajay Verma,  2003. 
 - viii, 240p. :  tables ;  21.5cm. 
 - World educational development series ;  6 .
<br/><br/><label>ISBN: </label>8171692281 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational technology.