Learning and instruction 

 - Exeter   : Pergamon   , 1991- 
 - v. 
 - Bimestral 
<br/><br/><label>ISSN: </label>09594752 
<br/><br/><label>Subjects--Topical Terms: </label><br/> EDUCACION
<br/><br/><label>Universal Decimal Class. No.: </label>04-H-39