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020 _a9788174907318
040 _cKLIB
041 _aeng
082 _a503
_bSh648s
100 _aShipra
245 _aThe big book of science projects
260 _aIndia
_bDhingra Publishing House
_c2017
300 _a104p.
650 _aChildren science
650 _aChildren science projects
942 _cCC
999 _c52891
_d52891