Survey of British research in audio-visual aids  : Part-1 bibliography Part-2 abstracts 
Compiled by Helen E. Coppen 
 - London:  National Committee for audio-visual Aids in Education,  1968. 
 - 163p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-Visual education-Bibliography 
<br/><br/><label>Dewey Class. No.: </label>371.33016  / COS