000 00279nam a2200121Ia 4500
008 241226s9999 xx 000 0 und d
020 _a0
082 _a510
_bNCE
100 _aNCERT.
245 0 _aMathematics (ClassIX)
260 _aNew Delhi:
_bNationa,
_c2014.
300 _a349.
999 _c178629
_d178629