Bhatnagar, S <br/><br/>
Education and communication technology 

 - New Delhi  : Ess Ess Publications,   1988 
 - xxv, 298p.  
<br/><br/><label>ISBN: </label>81-700-042-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>| Education - Communication technology <br/>| Educational technologies <br/>| Education - Instruction media 
<br/><br/><label>Dewey Class. No.: </label>371.331 B4