00295nam a2200121Ia 450000500170000000800410001704100080005808200160006610000160008224500280009826000380012630000090016420260720174536.0260720s2005    xx            000 0 und d  aeng  a370.15 SHAT  aSharan, Ram  aTeaching of mathematics  aNew DelhibA P H Publishingc2005  a276p