000 00261nam a2200121Ia 4500
100 _aColvin, S S
942 _cBK
245 _aThe Learning Process
260 _aNew York
_bMacmillan Co
_c1927
082 _a371.3
_bCol
300 _axxv,336
546 _aEnglish
999 _c337812
_d337812
041 _aeng