00450nam a2200145Ia 450000500170000000800410001704100080005808200150006610000230008124500320010426000380013630000090017499900190018395201020020220260720174537.0260720s2005    xx            000 0 und d  aeng  a500.7 SINT  aSingh, U K9267885  aTeaching of general science  aNew DelhibA P H Publishingc2005  a260p  c241963d241963  001040708BEDaALbALd2026-07-20l0o500.7 SINTpBED00355r2026-07-20 17:45:37w2026-07-20yBK