Wittich Walter Arno <br/><br/>
Audiovisual materials  : their nature and use 
C Francis Schuller jt auth 
 - 4th ed. 
 - New York:  Harper and Row,  1953. 
 - xvi, 554p. 
<br/><br/><br/>Eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio visual education
<br/><br/><label>Dewey Class. No.: </label>371.33  / WIA