000 00288nam a2200133Ia 4500
100 _aSidhu, Kulbir Singh
365 _b16
942 _cBK
654 _a
245 _aTeaching of Mathematics
260 _aNew Delhi
_bSterling Publishers
_c1977
082 _a375.51
300 _axii,316
999 _c385383
_d385383
041 _aeng