Unesco : IBE Education thesaurus 

 - Paris:  UNESCO,  1984. 
 - xvi,345p.;  21 cm. 
<br/><br/><label>ISBN: </label>9231020617 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education<br/>Information Science
<br/><br/><label>Dewey Class. No.: </label>025.49  / UNE