000 00296nam a2200109Ia 4500
008 220510s1972 xx 000 0 und d
041 _aeng
082 _a370
_bUNESCO
100 _aInternational Bureau of Education,
_9778760
245 _aInitiatives in Education
260 _aParis:
_bUNESCO,
_c1972
999 _c528970
_d528970