000 00347nam a2200145Ia 4500
008 160910s9999 xx 000 0 und d
040 _cSGVU Library
041 _cEng.
100 _aSingh, U K
245 _aScience Education
_cby U K Singh
260 _bCommonwealth Pub.
_c2007
520 _aEducation
650 _aEducation
942 _cBOOKS
999 _c61459
_d61459