Hass, Kenneth B <br/><br/>
Preparation and use of audio-visual aids/3e 

 - 3rd ed. 
 - New Delhi  Prentice Hall  1962 
 - xii,381p 
<br/><br/><label>Subjects--Index Terms: </label>Audio visual aids 
<br/><br/><label>Dewey Class. No.: </label>371.335  / HAS