Wittich, Walter A. <br/><br/>
Audiovisual materials: their nature and use / 
by Walter Arno Wittich and Charles Francis Schuller. 
 - 3rd ed. 
 - New York :  Harper,  [1962] 
 - Exploration series in education .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual education.
<br/><br/><label>LC Class. No.: </label>LB 1043 WIT 1962