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

 - 4th ed. 
 - London  Harper & Row, Publishers  1967 
 - xvi,553p. 
<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Method of instructions
<br/><br/><label>Dewey Class. No.: </label>371.3  / WIT