Khanna, P N <br/><br/>
Audio visual training materials :  A source guide / 
by P N Khanna 
 - New Delhi :  National council for educational research and training,  1893. 
 - 199p. : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio Visual
<br/><br/><label>Dewey Class. No.: </label>016.361  / KHR.A