Vélis, Jean-Pierre <br/><br/>
Through a glass, darkly :  functional illiteracy in industrialized countries / 
Jean-Pierre Vélis. 
 - Paris :  UNESCO,  1990. 
 - 137 p. 
<br/><br/><label>ISBN: </label>9231026518 
<br/><br/><label>No. de Clasificación Universal Decimal: </label>376.76 =20 VEL.