00322nam a2200121Ia 4500020001800000082001500018100001100033245003500044250001300079260008300092300001400175710001100189  a92-3-102061-7  a370.3 UNE-  aUNESCO 0aUnesco: IBE educatin thesaurus  a4th rev.  aFrancebUnited Nations Educational, Scientific and Cultural Organizationc1984  axvi, 345p  aUNESCO