Visual aids in fundamental education :  some personal experiences / 
Unesco 
 - Paris :  UNESCO,  1952 
 - 168 p.:  ill.,plates ;  21 cm. 
 - Press, film and radio in the world today ;  no.7 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Visual education
<br/><br/><label>Dewey Class. No.: </label>301.243