Educational studies and documents. 

 - Paris, France :  UNESCO,  1992 
 - v. ;  30cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/> Open Access. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education--Study and teaching.<br/>Teacher educators--Training of.<br/>Play.<br/>Educational innovations.