000 00270nam a2200121Ia 4500
100 _aMathur,C.B
942 _cBK
245 _aTeaching to think and discover
260 _aDelhi
_bAmar Prakashan
_c1995
082 _a370.152
_bMat
300 _a12,198
546 _aEnglish
999 _c343340
_d343340
041 _aeng