000 00330nam a2200145Ia 4500
008 170101s1973 xx 000 0 und d
082 _a150 P52M
100 _aPIAGET, Jean
245 0 _aMain trends in psychology
260 _bLondon
_c1973
300 _a70p
650 _aPSYCHOLOGY
653 _aPSYCHOLOGY
942 _2ddc
_cB
999 _c47682
_d47682