000 00316nam a2200145Ia 4500
008 140525s9999||||xx |||||||||||||| ||und||
245 _aTeaching of primary school mathematics : numbers
260 _aNew Delhi
260 _bIgnou
260 _c0
350 _a0
365 _b0
365 _dRupees
440 _v2
999 _c78510
_d78510