The Struggle against illiteracy throughout the world :  Some successful experimentsbetween 1971 and 1980 and future prospects. 

 - París :  UNESCO,  1983. 
 - 87 p. :  il., retrs. 
<br/><br/><label>ISBN: </label>9231019988 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>37.014. 22 (100) =20 STRU