Directory of educational documentation and information services 

 - 5a. ed. 
 - Paris :   UNESCO. Comité Académico Aguas,   1988. 
 - x, 114 p. 
 - Ibedata .
<br/><br/><label>ISBN: </label>9330025186 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EDUCACION-SERVICIOS DE INFORMACION-DIRECTORIOS