Decisions adopted by the Executive Board at its 138th session :  Paris, 7-8 November 1991. 

 - París :  UNESCO,  1991. 
 - vi, 10 p. 
 - Executive board ;  EX/Decisions  138. .
<br/><br/><label>Encabezamiento--Nombre Corporativo: </label><br/>UNESCO ---INFORMES