000 00284nam a22001097a 4500
999 _c10516
_d10516
082 _a370.15 PET
100 _aPeterson, Harvey A.
245 _aEducational psychology /
_cby Harvey A. Peterson.
260 _aNew York :
_bThe macmillan Company,
_c1948.
300 _a551 p.
942 _cSTS