000 00272nam a2200109Ia 4500
005 20251007104527.0
008 251006s9999 xx 000 0 und d
245 0 _aworld surrcy of - school educationunesco
260 _aIST.ED | PARIS UNESCO
260 _c1976
942 _cBOK
999 _c9142
_d9142