000 00481nam a2200157Ia 4500
008 131223s9999 xx 000 0 und d
040 _aISI KOLKATA
041 _aEnglish
082 _a371.26
_bRb-66-15
100 _aBest P J
245 _aExperimental investigation of a mathematical learning model
260 _aNew Jersey
_bETS
_c1966
440 _aEducational Testing Service. Princeton : Research bulletin; 15
650 _aEducational tests and measurements
942 _cBK
999 _c91942
_d91942