00290nam a2200121Ia 450000500170000000800410001704100080005808200150006610000160008124500290009726000340012630000080016020260720174608.0260720s2004 xx 000 0 und d aeng a540.2 HASD aHashmi, A H aDevelopment of chemistry aNew DelhibPustak Mahalc2004 a32p