Les techniques audiovisuelles au service de L'industrie =  [Audio visual techniques for industrial service]. 

 - New York :  United Nations,  1980. 
 - Mise au point et transfert des techniques ;  no. 6 .
<br/><br/> Text in French. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Instructional materials industry.