000 00266nam a2200109Ia 4500
008 211214s9999 xx 000 0 und d
100 _aYadav, Siya Ram
245 _aTeaching of Mathematics
260 _bShri Vinod Pustak Mandir
_c2016
300 _a395
942 _cBK
999 _c52858
_d52858