Hass, Kenneth B. <br/><br/>
Preparation and use of audio visual AIDS 

 - 3rd. ed. 
 - New York  Prentice Hall  1955 
 - xii, 381 
<br/><br/>Includes index 
<br/><br/><label>Subjects--Topical Terms: </label><br/>  Audiovisual materials<br/>  Teaching, Aids and devices
<br/><br/><label>Dewey Class. No.: </label>371.335  / H112p 1955