International understanding at school. 

 - Netherlands :  Unesco,  c 1965. 
 - 108 p. :  ill. ;  22 cm. 
<br/><br/>338  338 
<br/><br/><label>Subjects--Topical Terms: </label><br/>International education--Periodicals.
<br/><br/><label>Dewey Class. No.: </label>371.2 / U2i