000 00305nam a2200133Ia 4500
008 221229s9999 xx 000 0 und d
100 _aAggarwal, R.S.
245 0 _aMathematics for class 7
250 _aIst
260 _aPatna
_bBharti Bhawan
_c1993
300 _a237
650 _aEducation
942 _cBK
999 _c7144
_d7144