The nature of educational technology/ 
by V K Rao (ed.). 
 - New Delhi:  Commonwealth,  1992. 
 - 340p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Technology<br/>Education<br/>Social Science
<br/><br/><label>Dewey Class. No.: </label>371.33  / VKR/N