Educational  trends in 1970 an international survey (prepared by the international bureau of Education ) <br/><br/>
Educational  trends in 1970 an international survey (prepared by the international bureau of Education ) 

 - Paris  United Nations educational  1970 
 -  21 .0 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>370.9