000 00364nam a2200145Ia 4500
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082 _a371.1024 A82W
100 _aAbraham,Hebert J
245 0 _aWorld problems in the classroom
260 _aParis
_bUnesco
_c1973
300 _a223p.
690 _aEducation elementry
942 _cBK
999 _c258041
_d258041