000 00280nam a2200121Ia 4500
008 190216s9999||||xx |||||||||||||| ||und||
100 _aAsha Rani Singal
245 0 _aMathematics Tb X
260 _bNcrt - Newdelhi
_c2003
300 _a308
650 _aMathematics
942 _cREF
999 _c36682
_d36682