000 00290nam a2200133Ia 4500
100 _aMangal, S. K.
365 _b22.5
942 _cBK
654 _a
245 _aText book on teaching of Mathematics
260 _aLudhiana
_bPrakash brothers
_c1981
082 _a375.51
300 _a8352
999 _c388350
_d388350
041 _aeng