000 00263nam a2200121Ia 4500
008 230321s9999 xx 000 0 und d
082 _bMAN
100 _aMangal, S.K
245 0 _aTeaching of Mathematics
260 _bTandon
_c2009
300 _a547
942 _cBB
999 _c3396
_d3396