000 00453nam a2200217Ia 4500
008 140520s9999||||xx |||||||||||||| ||und||
020 _a0-04-150042-3
082 _a150
082 _bPia
100 _aPiaget, Jean
245 _aMain Trends In Psychology
260 _aLondon
260 _bGeorge Allen & Unwin
260 _c1973
300 _a72
300 _bpb
300 _c5x8.5
350 _a0
365 _b11.86
365 _dRuppes
999 _c57850
_d57850