Haas <br/><br/>
Preparation and use of audio-visual aids 

 - 3rd ed 
 - Englewood Cliffs  Prentice Hall  1962 
 - x,381 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>371.33