International conference on education 34th session  Geneva 19-27 September 1973 

 - Paris  UNESCO  1973 
 -  64p 
<br/><br/><br/>eng 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational research
<br/><br/><label>Dewey Class. No.: </label>370.78  / UNI