000 00264nam a2200121Ia 4500
100 _aColdarci, Arthur P.
942 _cBK
654 _a
245 _aEducational psychology
260 _aAmerica
_bThe Dryden Press
_c1955
082 _a370.15
300 _axvii,656
999 _c415512
_d415512
041 _aeng