Evans, Tom <br/><br/>
Audio-visual aids:  an introduction 
Tom Evans 
 - London:  National committee for audio,  1973. 
 -  78p 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Teaching aids and devices
<br/><br/><label>Dewey Class. No.: </label>371.33  / EVA