Wittich, Walter Arno and Schuller, Charles Francis <br/><br/>
Audiovisual materials: their nature and use 

 - 3rd ed. 
 - New York  Harper and row publisher  1962 
 - xxv,500p. 
<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  / WIT