Hallak, Jacques,  1937- <br/><br/>
Education, training and the traditional sector / 
Jacques Hallak; Françoise Caillods. 
 - París :  UNESCO. International Institute for Educational Planning,  1981. 
 - 143 p. :  fot. 
 - Fundamentals of educational planning ;  31 .
<br/><br/><label>ISBN: </label>9280310976 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37:331 (100) =20 HAL No.31.