The Multilateral exchange of educational audio-visual materials :  existing mechanisms and suggestions for the future 

 - Paris :  Unesco,  1980 
 - 117 p. :  ill. ;  24 cm. 
 - Educational methods and techniques  v.2 .
<br/><br/>Bibliography: p.61-62 
<br/><br/><label>ISBN: </label>9231016948 
<br/><br/><label>LCCN: </label>80-510453 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audio-visual materials<br/>Educational exchanges