Hallak, Jacques,  1937- <br/><br/>
Educational challenges of the 21st century :  the vision of quality / 
Jacques Hallak. 
 - Paris :  UNESCO, International Institute for Educational Planning,  1996 
 - v, 13 p. 
 - IIEP contributions ;  23 .
<br/><br/> "This document was presented at the Vth SEAMEO-INNOTECH International Conference, which was held from 5 to 7 december 1995, Manila, Philippines" 
<br/><br/><label>Encabezamiento--Tema: </label><br/>Educación--Aspectos sociales