370<br/>WIT<br/><br/>
4484<br/><br/>
Wittich, Walter Arno <br/><br/>
AUDIOVISUAL MATERIALS  : THEIR NATURE AND USE 

. – 3rd ed. 
. – new york :  HARPER & ROW, PUBLISHERS.
<br/><br/>xviii, 500 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCATION
<br/><br/><label>Dewey Class. No.: </label>370  / WIT