000 00303nam a2200121Ia 4500
100 _aSmith ,Wendell I- ed.
942 _cBK
245 _aProgrammed Learning: Theory and Research
260 _aToronto
_bD. van Nostrand co. INC
_c1962
082 _a371.394
_bSmi
300 _ax,240PP
546 _aEnglish
999 _c339500
_d339500
041 _aeng