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

 - Paris:  Unesco,  1980. 
 - 117p.   (Educational methods and techniques 2) 
<br/><br/> PB 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>9231016948 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Audiovisual education<br/>Audiovisual meterials
<br/><br/><label>Dewey Class. No.: </label>371.33  / MUL