New educational media in action :  case studies for planners. 

 - Paris :  UNESCO ,  1969 
 - 3 vols. :  ill. ;  26 cm. 
 - Based on a research project financed through a contract with the U.S. agency for International Development .
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational planning<br/>Teaching<br/>Aids and devices
<br/><br/><label>Dewey Class. No.: </label>370.9  / IIEP-2