International understanding :   as an integral part of the school curriculum. 

 - Paris :  UNESCO,  c 1968. 
 - 242 p. :  ills. ;  23 cm. 
<br/><br/> Includes index. 
<br/><br/>331  331 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Statistics.
<br/><br/><label>Dewey Class. No.: </label>375 / U3i