000 00350nam a2200157Ia 4500
008 180323s9999 xx 000 0 und d
082 _a510.71
100 _aNCERT
245 0 _aTeaching of mathematics
250 _a1st
260 _aNew Delhi
_bNCERT
_c2005
300 _a26
500 _a3476
650 _aMathematics - teaching
942 _cBOOK
999 _c9283
_d9283