Basic education in the Sahel countries / 
M. Botti, M. D. Carelli, M. Saliba. 
 - Hamburgo :  UNESCO;  Institute for Education Hamburg,  1978. 
 - x, 130 p. 
 - UIE monographs ;  6 .
<br/><br/> A study prepared for the international bank for reconstruction and development 
<br/><br/><label>ISBN: </label>9282010112 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37.018.8 (6) =20 EDU No.6.