Hass, Kenneth B., Packer, Harry Q. and Kuhn, Bert Paul <br/><br/>
Preparation and use of audio-visual aids 

 - 3rd ed. 
 - England  ; Prentice Hall  , 1955 
 - xii,381p. 
<br/><br/><label>ISBN: </label> 400 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Method Of Instruction
<br/><br/><label>Dewey Class. No.: </label>371.3  / HAS