000 00279nam a2200109Ia 4500
100 _aJournal of Education & Psychology Vol;59 No1-6
942 _cBV
654 _a
245 _aJournal of Education & Psychology Vol;59 No1-6
_bFeb1968-Dec1968
260 _c1968
082 _a370.5
999 _c384876
_d384876
041 _aeng