000 00484nam a2200181Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a372.7
_bH467
100 _aHeimer R T
245 _aStrategies for teaching children mathematics
260 _aMassachusets
_bAddison Wesley
_c1977
300 _axii,320p.
650 _aChildren mathematics
650 _aElementary arithmetic
700 _aTrueblood C R
_4Auth.
942 _cBK
999 _c72843
_d72843