UNESCO <br/><br/>
New trends in mathematics teaching  Tendances nouvelles dei' enseignement des mathematiques (Vol -II) 

 - Paris  UNESCO  1970 
 - 12476  Hb 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>375.51