000 00317nam a2200133Ia 4500
008 180816s9999 xx 000 0 und d
082 _aTRFil500 Sc27
245 0 _aScience
260 _aManila
260 _bFoundation for upgrading the Standard of Education
300 _a188 p
650 _aScience
942 _cBK
999 _c51996
_d51996