000 00293nam a2200109Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aPostman, Leo
245 0 _aExperimental psychology
260 _bHarper and Bro.
_aNew yark
_c1949
942 _c1
999 _c28540
_d28540